ATA 25 - EQUIPMENT

AND FURNISHINGS
Cat. B1.1 / B2
(Level 3)
Boeing 787-8/9/10 (GEnx) ATA 25

Table Of Contents
25-10 FLIGHT COMPARTMENT EQUIPMENT ................................................................................................................................................. 4
25-20 PASSENGER COMPARTMENT............................................................................................................................................................ 35
25-30 GALLEY SYSTEMS............................................................................................................................................................................... 70
25-40 LAVATORIES ........................................................................................................................................................................................ 89
25-51 OVERHEAD FLIGHT CREW REST ......................................................................................................................................................... 97
25-52 OVERHEAD FLIGHT ATTENDENTS REST ............................................................................................................................................ 97
25-60 EMERGENCY ..................................................................................................................................................................................... 113

Revisions Table
Issue / Revision Date Comment
Issue 1 06 Apr 2020 Initial issue
Review 20 Mar 2021
Review 26 Mar 2022
Review 26 Mar 2024 No Changes

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(1) Purpose

Teaching Points
1. These are the equipment and furnishings subjects in this lesson:

- Flight compartment equipment

- Passenger compartment areas

- Galley systems

- Lavatories.

Student Notes
None

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(2) Purpose

Teaching Points
1. The flight compartment equipment gives the necessary accommodations for
a flight crew of 2 pilots and 2 observers.

Student Notes
System Description Section

Purpose

The flight compartment equipment gives the necessary accommodations for a

flight crew of 2 pilots and 2 observers.

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(3) General Description - Flight Comp. Equipment System Description

Teaching Points
1. The flight compartment equipment and furnishings include these component The captain and first officer seats are adjustable. The seats have electrical
groups on the flight deck: and manual adjustment modes.

- Seats

- Stowage compartments The first observer seat can move forward and aft. The second observer seat
attaches on the flight compartment aft bulkhead and does not move.
- Consoles.

The flight deck has a stowage closet for coats and bags. There is also a book
2. There are also linings on the side walls and overheads. stowage.

Student Notes
Systems Description Section (SDS)
There are forward and side flight compartment consoles on the left and right.
An observers console is between the 2 observer seats.

Components

These are the flight compartment equipment components:

- Captain seat

- First officer seat

- First observer seat

- Second observer seat

- Stowage.

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787_0028_0001_V3

FLIGHT COMPARTMENT (25-10)

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(4) Captain and First Officer Seat

Captain and First Officer Seats
Teaching Points
1. The captain and first officer seats give the flight crew a location to operate
the necessary airplane controls.
Tracks attach to the floor for the captain and first officer seats. Each seat has
stowage in the back for a life vest.

2. Tracks attach to the floor for the captain and first officer seats.

The seats can operate electrically in the horizontal and vertical direction. An
electronic control unit (ECU) below each seat controls electrical operation and
3. Each seat has stowage in the back for a life vest. end stops. These remote power distribution units (RPDU) supply power for
seat operation:

- RPDU 71 (right dc bus) - captain seat

4. An electronic control unit (ECU) below the seat controls electrical operation
of the forward and aft seat movement and end stops. - RPDU 72 (right dc bus) - first officer seat.

5. Each seat has 2 electric control switches. One located under a cover behind You must use the ECU to do a calibration after replacement of a captain or
the head rest and one located on the inboard side of the seat. first officer seat.

6. There is a calibration procedure necessary during installation. The captain and first officer seats also have these manual adjustments:

Student Notes - Horizontal

System Description Section (SDS)
- Vertical

- Recline
Purpose
- Thigh

- Lumbar
The captain and first officer seats give the flight crew a location to operate the
flight controls. - Pan tilt

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Secondary Forward/
Aft Power Switch

Life Vest
Stowage

Maintenance Seat Controls

Controls

Left Side Switch Cover Switch Cover Stowage

View Closed Open Open
25-11-01 Captain and First Officer Seat
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- Armrest

- Headrest.

The weight of each seat is 94 lb (43 kg).

Aircraft Maintenance Manual (AMM)

The calibration procedure for the captain or first officer seat installation is in
the AMM (Refer to B787-A-25-11-01-00A-720A-A).

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(5) Operation - Captain and First Officer Seat The captain and first officer seats are the same and have the same controls.

Teaching Points
1. The captain and first officer seat has electric and manual controls to adjust Electrical Controls
fwd/aft and vertical positions.

- You can stand behind the seat and use the fwd/aft rocker switch on the top
rear part of the seat for forward/aft movement The captain and first officer seats have these electrical controls:

- Horizontal power switch (right side) - usual control for forward and aft
movement of the seat
2. There are also manual position adjustments on each seat.
- Vertical power switch (right side) - usual control for up and down movement
of the seat

3. An electronic control unit (ECU) below each seat has these switches: - Fwd/aft rocker switch (top of back) - secondary control for forward and aft
movement of the seat
- PILOT/CO-PILOT - sets operation for seat location
- Power cut off switch (right side, near armrest) - removes electrical power to
- UPLOAD/CALIBRATION/RUN - for maintenance use and normal operation. the seat.

4. The CALIBRATION switch position is necessary during a seat installation. All electrical controls operate the seat through an electronic control unit (ECU)
below the seat.
- No line and base procedure uses the UPLOAD position.

ECU
5. Access to the ECU switches are from the back of the seat.

Student Notes
Systems Description Section (SDS) The ECU has 2 switches, which are for maintenance. These switches are on
the rear face of the ECU. The seat type switch has these positions:

- PILOT - sets the operation of the seat for the captain position
General
- COPILOT - sets the operation of the seat for the first officer position.

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ICN-B787-A-000051-A-81205-02300-A
Figure 1 Flight Compartment Equipment - Captain and First Officer Seat - Operation

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- Manual recline control (lever) - push down to let the seat back position
change
The maintenance switch has these positions:
- Thigh support control (knob) - turn to increase or decrease the thigh pad
- RUN - usual operation tension

- CALIBRATION - used in the seat installation procedure - Vertical manual control (lever) - push down to let the seat vertical position
change.
- UPLOAD - not used in usual line and base procedures.

You turn an armrest adjustment knob on the bottom of left and right armrests
You get access to the ECU switches from behind the seat. to move the armrest up or down.

Manual Controls

The captain and first officer seats have these manual controls on the right side:

- Harness reel lock control (near armrest) - releases the harness lock
mechanism

- Lumbar in/out control (knob) - turn to move the lumbar position forward or
aft

- Seat pan tilt control (lever) - push down to let the seat pan tilt position
change

- Fwd/aft lever control - push down to let the seat horizontal position change.

The captain and first officer seats have these manual controls on the left side:

- Lumbar up/down control (knob) - turn to move the lumbar position up or

down

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(6) First Observer Seat - Armrest

- Headrest.
Teaching Points
1. The first observer seat gives a location for an observer to monitor flight deck
operations.
The weight of the first observer seat is 63 lb (29 kg).

2. The seat attaches to tracks on the floor.

Student Notes
System Description Section (SDS)

The first and second observer seats give a location for observers to monitor
flight deck operations.

First Observer Seat

Tracks attach to the floor for the first observer seat. The left armrest moves out
of the usual position for storage. The right armrest includes a fold-out work
table.

The first observer seat has these manual adjustments:

- Horizontal

- Vertical

- Recline

- Lumbar

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25-11-03 First Observer Seat

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(7) Operation - First Observer Seat

Teaching Points
1. The first observer seat has manual controls to adjust position.

2. A work table folds out of the right seat arm.

Student Notes
Systems Description Section (SDS)

Controls

The first observer seat has these manual controls on the left side:

- Lumbar up/down control (knob) - turn to move the lumbar position up or

down

- Lumbar in/out control - releases the lumbar position to move forward or aft

- Recline control lever - push down to let the seat back position change

- Vertical manual control (lever) - push down to let the seat vertical position
change

- Fwd/aft control lever - push down to let the seat horizontal position change.

A work table folds into the right armrest.

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B787-81205-A0102-00
787 SYSTEM DESCRIPTION SECTION

ICN-B787-A-000051-A-81205-02301-A
Figure 1 Flight Compartment Equipment - First Observer Seat - Operation

Applicable to: ALL

B787-A-25-10-00-06A-110A-A
25-10-00-008

Aug 15/2011 Page 2

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(8) Second Observer Seat

Teaching Points
1. The second observer seat gives a location for a second observer to monitor
flight deck operations.

2. The seat attaches to the aft bulkhead and has no adjustments.

Student Notes
System Description Section (SDS)

Second Observer Seat

The second observer seat attaches to the aft bulkhead and has no
adjustments. There are no armrests on the second observer seat. The seat-
bottom folds up for floor stowage of large flight kits.

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Second
Second First
First
Observer
Observer Observer
Observer
Seat
Seat Seat
Seat (Ref)
(Ref)

Flight
Flight Compartment
Compartment (Ref)
(Ref)

Captain
Captain
Seat
Seat (Ref)
(Ref)

25-11-04 Second Observer Seat

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(9) Flight Deck Stowage

Teaching Points
1. The flight deck has these stowage areas:

- Closet with a coat rack

- Book compartments.

Student Notes
System Description Section (SDS)

Purpose

The stowage compartments on the flight deck hold coats, bags, and books.

General

There is a stowage closet and book stowage.

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Coat
Rack

AFT
Aft Flight Deck
Left Side

25-14-01 Flight Compartment Stowage Closet

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Book
Book Stowage
Stowage

Crew
Oxygen
Book
Mask and
Stowage
Stowage
Box (Ref)
First
Observer
Seat (Ref)

OUTBD
Aft Flight Deck
Right Side shown

25-14-02 Flight Compartment Book Stowage

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(10) Pilot Consoles

Teaching Points
1. There is a forward console and a side console each for the captain and for
the first officer.

Student Notes
System Description Section (SDS)

Purpose

Consoles on the flight deck have work areas and hold equipment necessary
for airplane operation.

General

There are left and right side consoles and left and right forward consoles. An
observer console is between the first and second observer seats.

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Electronic
Flight Bag
Display Unit
(Ref)

Nose Wheel
Steering
Tiller
Module (Ref)

FWD
Flight Compartment - Left Side, Forward
Left Side shown, Right Side almost the same

25-15-03 Forward Console

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FWD
Flight Compartment - Right Side, Forward
Right Side shown, Left Side almost the same

25-15-01 Side Console

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(11) Observers Console

Teaching Points
1. There is an observers console between the observer seats.

2. There is a maintenance laptop connection and power connection in the

observer's console.

Student Notes
Systems Description Section (SDS)

General

An observer console is between the first and second observer seats.

There is a maintenance laptop wired connection and power connection at the

bottom of the observers Console.

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Observer
Console
(Stowage
Second doors open)
Observer
Seat (Ref)

First
Observer
Seat (Ref)

Aft Flight Compartment

25-15-05 Observer’s Console
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(12) Location - Flight Deck

Teaching Points
1. These components are on the flight deck:

- Seats

- Stowage compartments

- Consoles

- Liners.

Student Notes
System Description Section (SDS)

Flight Deck

These flight compartment equipment components are on the flight deck:

- Captain seat

- First officer seat

- First observer seat

- Second observer seat

- Stowage

- Consoles.

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(TXLSPHQWDQG)XUQLVKLQJV)OLJKW&RPSDUWPHQW(TXLSPHQW

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(13) Purpose - Passenger Comp. Equipment

Teaching Points
1. The passenger compartment areas give all necessary accommodations for
the passengers and flight crew.

Student Notes
System Description Section (SDS)

Purpose

The passenger compartment areas give all necessary accommodations for the
passengers and flight attendants.

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(14) General Description - Passenger Comp. Equipment - Floor-mounted stowage box (customer configuration)
- Attendant pod (customer configuration)
- Overhead stowage box (option)
Teaching Points - Service outlet (1 pair at each passenger entry door) (option)
1. The passenger cabin equipment and furnishings include these component - Medical outlet (frequency converter) (2) (option)
groups: - Reveal assembly (1 at each passenger window). (option)

- Passenger service units (PSU) Interfaces

- Closets, partitions and outlets There are 10 seat tracks in a passenger cabin. Some passenger area
components attach to seat tracks and airplane structure in adaptable zones.
- Seats The adaptable zones are set areas in the passenger cabin that have
provisions for these components. There are floor reinforcements and systems
- Stowage compartments. attachments in those adaptable zones areas that permit lavatories and galleys.
You can move components in the adaptable zones if a different passenger
cabin configuration is necessary.

2. There are also linings on the side walls and overheads. There are some fixed zones that only permit a set component configuration.

General Description

3. Seat-to-seat wiring for in-flight entertainment (IFE) data and electrical power The passenger compartment seats attach to the seat tracks on the floor. In-
connect through seat track covers. flight entertainment (IFE) connections between seats are in the passenger
seat track covers. There are different passenger compartment seat
Student Notes configurations.
Systems Description Section (SDS)
PSUs are above the passenger seats and supply different passenger services.
Components

These are the passenger compartment area components: Inboard and outboard overhead stowage bins give space for passenger carry-
- Passenger service unit (PSU) (customer configuration) on baggage.
- Closet (customer configuration)
- Partition (customer configuration) The full height and under bin closets attach to the seat tracks on the floor.
- Class divider (customer configuration) Closets have LED (light emitting diode) lighting with coat rods and adjustable
- Curtain (customer configuration) shelves.
- Passenger compartment seat (customer configuration)
- Passenger seat track cover (customer configuration) The full-height partitions, under bin partitions, and class dividers attach to the
- Attendant seat (customer configuration) seat tracks on the floor. These partitions and class dividers go between groups
- Outboard stowage bin (customer configuration) of passenger seats. Curtains can go across an aisle.
- Center stowage bin (customer configuration)
- Stowage bin snubber (customer configuration)

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Each flight attendant seat has an attendant pod above for stowage of
emergency equipment. The flight attendant seat attaches to the floor. Floor-
mounted stowage boxes can be at different locations in the passenger cabin.
Stowage compartments and boxes hold emergency and other equipment.

There is a overhead stowage box above the aft galley. (option)

Service outlets adjacent to the passenger entry doors (PED) give an electrical
connection for cabin servicing equipment on the ground. (option)

Medical outlets in PSUs and frequency converters supply power for medical
equipment in flight. (option)

Each passenger window has a reveal assembly around the window. (option)

The passenger compartment areas also have:

- Floor coverings - carpet and floor mats
- Wall and ceiling linings.

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PARTITION (NOT SHOWN)

CURTAINS
FLOOR MOUNTED STORAGE BOX
CLASS DIVIDER (NOT SHOWN)
ATTENDANT SEAT CLOSETS
ATTENDANT POD (TYPICAL)
FLIGHT COMPARTMENT SERVICE OUTLETS
SECONDARY DOOR

OVERHEAD STORAGE BOX

PASSENGER
SERVICE UNIT

REVEAL ASSEMBLY

RPDU FLOOR
OUTBOARD STORAGE BIN (TYP) DISCONNECT
STORAGE BIN SNUBBER BRACKET (TYP)
PASSENGER
STORAGE BIN LATCH
787_0029_0001_V4

IFE SEAT TRACK

CENTER STORAGE BIN (NOT SHOWN)
SYSTEM COVER
DATA
DISCONNECT
BRACKET (TYP)
PASSENGER SEAT
PASSENGER COMPARTMENT (25-20)
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(15) Passenger Service Unit - Filler panel - blank spacer

- Temperature sensor panel - monitors cabin temperature (refer to 21-60

Teaching Points Temperature Control)
1. The different types of overhead passenger service units (PSU) give these
functions: - Information sign panel

- Personal air outlet (PAO) - Oxygen panel - holds passenger oxygen masks and related components
(refer to 35-21 Passenger Oxygen System)
- Passenger oxygen
- Reading light panel
- Attendant call lights
- Passenger air outlet (PAO) panel
- Information signs
- Video panel - holds overhead panels (refer to 44-25 In-flight Entertainment
- Reading lights. System)

- Video panel - holds overhead panels (refer to 44-26 In-flight Entertainment

System)
2. Outboard and inboard PSUs are not interchangeable.
- Passenger service module (PSM) panel (refer to 44-10 Cabin Core
Systems).

3. Components are interchangeable between PSUs. - Medical outlet panel - at first PSU location forward of doors 2L and 4L. The
medical outlet panels have a universal ac receptacle and a 28v dc receptacle.
The voltage and frequency at the ac receptacle is a customer selection.

4. Outboard PSUs include sidewall wash lights.

Student Notes There are PSUs in the overhead flight crew rest (OFCR).
Systems Description Section (SDS)

There are PSUs in the overhead flight attendant rest (OFAR).

General

These are the different PSU types:

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Cabin
Cabin Reading
Reading Lights
Lights Cabin
Cabin Reading
Reading Cabin
Cabin Reading
Reading Lights
Lights
Light
Light Off
Off Lights,
Lights, PSU,
PSU, Oxygen
Oxygen Light
Light On
On
Flow
Flow Indicator
Indicator

Oxygen
Oxygen Flow
Flow Indicator
Indicator Oxygen
Oxygen Flow
Flow Indicator
Indicator
Door
Door Closed
Closed Door
Door Open
Open

25-23-00 Passenger Service Unit

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(16) Closet

Teaching Points
1. Closets give stowage areas in the passenger cabin.

2. A passenger cabin can have full-height closets and under bin closets.

3. An airline can select from different closet types and widths for their cabin
configuration.

Student Notes
Systems Description Section (SDS)

Purpose

The closets give stowage areas for emergency equipment and other large
items.

General

There are different closet widths that the airline can select. These are the
closet types:
- Centerline closet
- Outboard closet
- Centerline under bin closet
- Outboard under bin closet
- Centerline lavatory combination closet.

All closets have light emitting diode (LED) lighting. Closets attach to the seat
tracks and are a nonmetallic material. The full-height closets have high and
low compartments with 2 doors. The under bin closets have 1 door.

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Full
Full
Length
Length
Closet
Closet
Top
Top Door
Door -- Open
Open

Bottom
Bottom Door
Door -- Open
Open

Wheel
Wheel Chair
Chair -- Open
Open Coat
Coat Rack
Rack -- Up
Up

25-24-10 Closets
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(17) Partition and Class Divider

Teaching Points
1. Partition and class dividers are between different cabin areas.

2. Partitions are full height and attach to seat tracks and the overhead.

3. Class dividers are at under bin locations and attach to seat tracks and
passenger service unit rails.

4. An airline can select from different partition and class dividers types for their
cabin configuration.

Student Notes
Systems Description Section (SDS)

Purpose

The partitions divide the passenger compartment into areas.

General

Partitions attach to the seat tracks. The full-height partitions use the ceiling
structure for top support. The under bin partitions use the passenger service
unit for top support. The partitions are a
nonmetallic material.

Class dividers attach to seat tracks in adaptable zones and use passenger
service units for top support. Class dividers are a nonmetallic material.

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Passenger
Passenger Cabin
Cabin
Typical
Typical Outboard
Outboard Partition
Partition shown,
shown, Center
Center Partitions
Partitions almost
almost the
the same
same

25-24-20 Partition
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Not
Not Dimmed
Dimmed Dimmed
Dimmed

25-24-22 Class Divider

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(18) Service Outlets

Teaching Points
1. Service outlets connect electrical power for airplane servicing and
maintenance on the ground.

2. Service outlets in the passenger cabin are forward of each passenger entry
door (PED) near the floor.

3. Service outlets are also in equipment (EE) compartments.

Student Notes
System Description Section (SDS)

Purpose

Service outlets connect electrical power for servicing and maintenance

equipment on the ground.

General

The remote power distribution units (RPDU) supply 115v ac, 400 Hz to the
service outlets.

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Passenger
Passenger Entry
Entry Door
Door (PED)
(PED)
Typical
Typical

Service
Service Outlet
Outlet
Adjacent
Adjacent to
to each
each PED
PED
25-24-30 Service Outlets
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(19) Passenger Seat

Teaching Points
1. An airline can select from different passenger seat types for their cabin
configuration.

2. Each seat type attaches with the same hardware to the seat tracks in the
passenger cabin.

Student Notes
System Description Section (SDS)

Purpose

Passenger seats give a location for the passengers to stay during flight.

General

The passenger seats attach to the seat tracks on the floor and have interfaces
with the in-flight entertainment (IFE) system components. There are different
available passenger seat types for each passenger class. The airline selects
the seat types and row configuration.

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Passenger
Passenger Cabin
Cabin
Typical
Typical Passenger
Passenger Seats
Seats of
of Different
Different Classes
Classes

25-25-01 Passenger Seat

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Passenger Seat installed in Seat Track

Rear
Rear Rear
Rear Rear
Rear Lug
Lug Bolt
Bolt Rear
Rear Lug
Lug Bolt
Bolt
Lug
Lug Bolt
Bolt Lock
Lock Nut
Nut Extended
Extended Extended
Extended

Rear
Rear Seat
Seat Track
Track Fitting
Fitting Rear
Rear Seat
Seat Track
Track Fitting
Fitting Rear
Rear Seat
Seat Track
Track Fitting
Fitting
(Forward
(Forward Fitting
Fitting Similar)
Similar) Rear
Rear Lug
Lug Bolt
Bolt Extended
Extended Rear
Rear Lug
Lug Bolt
Bolt Extended
Extended
into Seat Track
into Seat Track
25-25-00 Passenger Seat Track Fitting
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(20) Passenger Seat Fitting CAUTION: KEEP THE PLUG-AND-PLAY CABLE AWAY FROM THE AREA
BETWEEN THE SEAT LEG AND THE FLOOR PANEL. DAMAGE TO THE
PLUG-AND-PLAY CABLE CAN OCCUR WHEN YOU REMOVE OR INSTALL
Teaching Points THE SEAT.
1. The forward passenger seat fitting has 1 locking lug.

2. The aft passenger seat fitting has 2 locking lugs.

3. The RED position shows the seat is unlocked.

4. The GREEN position shows the seat is locked.

Student Notes
Aircraft Maintenance Manual (AMM)

To disengage the forward seat track fittings 6, do these steps:

(a) Loosen the forward lug nuts.
(b) Turn the forward lug bolts to the unlocked position.

NOTE: The indicator arrow on the top surface of the forward lug bolt align wi th
the RED indicator dot when the lug bolt is unlocked.

2. To disengage the rear seat track fittings do these steps:

(a) Loosen the rear lug nuts.
(b) Turn the rear lug bolts to the unlocked position.

NOTE: The indicator arrow on the top surface of the rear lug bolts align with
the RED indicator dot when the lug bolts are unlocked.

WARNING: CAREFULLY LIFT, LOWER, OR MOVE THE SEATS. BECAUSE

SOME SEATS HAVE A WEIGHT OF ALMOST 250 LB (113 KG), INJURIES
TO PERSONNEL CAN OCCUR.

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Lug Lock
Position
Locked Unlocked Indicator

Green (Seat
Locked)

Front Seat Track Fitting

(Single Lug)

Red (Seat
Unlocked)

Lug Lock
Position
Indicator
Rear Seat Track Fitting
(Double Lug)
Front Seat Track Fitting
(Single Lug)
25-25-00 Passenger Seat Track Fitting - Locking
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(21) Passenger Seat Track Cover connect power between seats. There are different lengths of passenger seat
track covers for the different distances between passenger seats.
Teaching Points
1. Seat track covers attach between the passenger seats.

2. Each seat track cover has connectors at each end and holds wires that
connect in-flight entertainment (IFE) data and power between seats.

3 The IFE and power seat track cover connectors are different with power
connections along one seat track and IFE data connections along the other
seat track.

4. There is a fitting cover at each end of the seat track cover.

Student Notes
System Description Section (SDS)

Purpose

Passenger seat track covers connect the in-flight entertainment (IFE) wiring
between passenger seats.

General

Passenger seat track covers have connectors at each end. The covers that
connect data between seats have different connectors than the covers that

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Seat
Seat Track
Track Cover
Cover -- Seat
Seat Track
Track Cover
Cover Seat
Seat Track
Track Cover
Cover --
Removed
Removed Installed
Installed

25-25-02 Passenger Seat Track Cover

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(22) Attendant Seat amd Pod

These seats give flight attendants a location to stay during flight.
Teaching Points
1. Attendant seats are at different locations in the passenger cabin.

General

2. Each attendant seat includes an attendant switch panel and handset.

Each attendant seat has an attendant switch panel (ASP) and a cabin
attendant handset (CAH). The ASP gives control of the attendant work lights
3. Electrical connectors at the bottom of each attendant seat connect to cabin above the attendant seats and the emergency lights. Flight attendants use the
wiring. CAH for passenger address and the cabin interphone calls.

4. Attendant seats attach to the seat tracks in the floor. The attendant seats attach to the seat tracks on the floor. The attendant seat
has a seat pan that folds up when not in use. An attendant pod is directly
above each attendant seat.

5. There is a stowage compartment for emergency equipment at the base of

each attendant seat.

6. An attendant pod above each attendant seat can have stowage for:

- Emergency equipment

- Cabin attendant panel (CAP)

- In-flight entertainment (IFE) control panel.

Student Notes
System Description Section (SDS)

Purpose

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High
Comfort Standard
Seat Seat

Attendant Seats are at different locations in Cabin

High Comfort Seats are Airline Optional

25-25-06 Attendant Seat and Components

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Access Door Open

Flight Attendant Station

Typical

25-28-06 Attendant Pod

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(23) Stowage Bin

General
Teaching Points
1. Overhead stowage bins hold standard roll-aboard passenger bags.

The outboard stowage bins have an interface with:

2. There are large stowage bins outboard in premium and economy areas of - Indirect ceiling lights and sidewall lights
the passenger cabin.
- Passenger service units (PSU).

3. There can be large and medium center bins in the economy areas of the
passenger cabin. The indirect ceiling lights attach above the outboard stowage bins. The
sidewall lights are a part of the outboard PSU assemblies that connect to the
outboard stowage bins.

4. The stowage bin latch opens from the top or the bottom.

Each of the PSUs aligns directly with a stowage bin.

5. A red indicator shows at the edge of the latch when the latch is open.

Seals on the edges and sides of the stowage bins decrease vibration noise.

6. A snubber at each end of each overhead stowage bin slows bin movement.

Student Notes A latch on the front opens the stowage bin. A tool unlocks the emergency
System Description Section (SDS) release latch if the storage bin does not open normally.

Purpose

The outboard stowage bin gives the passengers an overhead stowage area
and gives a stowage area for emergency equipment.

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Closed Open

4-Way
4-Way
Latch
Latch
Release
Release

Lock
Lock
Indicator
Indicator

25-28-01 Outboard Stowage Bin

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Center Stowage Bin

Typical, above Center Rows in Cabin

25-28-02 Center Stowage Bin

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(24) Stowage Boxes snubbers use a compressed spring to help lift the stowage box to the closed
position. There are also other snubbers that attach to each end of the stowage
box. These snubbers help to
Teaching Points
1. The overhead stowage box gives a location above the aft galley for decrease the rate at which the stowage box opens.
necessary equipment.

There are hinges on each end of the stowage box that connect to the actuator/
2. This is a customer option and is not available if an overhead flight attendant snubbers. This gives a point for the stowage box to turn open and close. The
rest (OFAR) is installed. hinge comes against a support bracket when the stowage box is open.

Student Notes
System Description Section (SDS)
There is a latch on each end of the stowage box to hold the box closed. The
latches release by one latch handle in the middle of the latch assembly.

The overhead stowage box gives a location above the aft galley for necessary
equipment.

The overhead stowage box has these components:

- Actuator/Snubber (2)

- Snubber (2)

- Hinge (2)

- Latch (2)

- Box.

An actuator/snubber attaches to a hinge assembly at each end of the stowage

box. The 2 actuator/snubbers decrease the rate at which the stowage box
opens and closes. The actuator/

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Overhead
Stowage
Box

Aft Fixed Galley

25-28-07 Overhead Stowage Box

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(25) Purpose - Galley Systems

Teaching Points
1. The galleys give work areas that can hold food and where flight attendants
can prepare meals.

Student Notes
System Description Section (SDS)

Purpose

The galleys give work areas that can hold food and where flight attendants can
prepare meals.

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(26) General Description - Galley Systems Student Notes

System Description Section (SDS)
Teaching Points
1. There are galley fixed zones in the forward and aft cabin.
Components and Interfaces

2. Flexible galleys and bar units can be at different locations in the outboard
and center galley adaptable zones.
These are the galley systems components:

- Center flexible galley (customer configuration)

3. Galley refrigeration uses galley cooling units (GCU) that are part of the
- Outboard flexible galley (customer configuration)
integrated cooling system (ICS) - (ATA 21).
- Forward fixed galley

- Aft fixed galley

4. Refrigeration control is automatic.
- Bar unit (customer configuration).
- Temperature ON/OFF selection is at the cabin attendant panel (CAP) or at
each galley panel.

- An emergency OFF switch at each galley panel removes electrical power

Each galley has these standard interfaces:
to the galley modules.
- Electrical power

- Water
5. Some of the outboard galley adaptable zones do not have active
refrigeration.
- Waste

- Conditioned air
6. Each galley uses standard inserts that hold galley equipment.
- Ventilation.
- There are 4 sizes of inserts.

System Description
7. Liquid from the sink goes to the vacuum waste system.

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AFT FIXED GALLEY

(TYPICAL)

OUTBOARD FLEXIBLE CENTER FLEXIBLE

FORWARD FIXED GALLEY GALLEY (TYPICAL)
(TYPICAL) GALLEY (TYPICAL)

BAR UNIT (TYPICAL)

ADAPTABLE ZONE FIXED ZONE NO ACTIVE REFRIGERATION

787_0194_0001_V1

ADAPTABLE ZONE FIXED ZONE

LAVATORY (TYPICAL)

GALLEY SYSTEMS (25-30)

LAVATORIES (25-40)
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Galleys get 115v ac, 3 phase, variable frequency from electrical power - Beverage makers.
distribution panels and 28v dc from remote power distribution units (RPDU).

Size 2 inserts usually hold these types of galley equipment:

The total electrical power for galleys is 110 kva.
- Convection ovens

- Steam ovens
Bar units get 28v dc from RPDUs.
- Refrigerators, freezers, and chillers

- Induction ovens.
Galley refrigeration uses galley cooling units (GCU) that are part of the
integrated cooling system (ICS) (refer to 21-81 Power Electronics Cooling
System). The GCUs help control the temperature of the galley carts.
Temperature control is automatic. The temperature ON/OFF selection is at the Size 3 inserts usually hold trash compactors.
cabin attendant panel (CAP) or at each galley panel. An emergency OFF
switch at each galley panel removes electrical power to the galley module
components.
Size 4 inserts usually hold these types of galley equipment:

- Bun warmers
Liquid from the sink goes to the vacuum waste system (refer to 38-30 Waste
Water System). - Induction ovens.

Each galley has standard inserts that hold galley equipment. There are 4 sizes The flexible galley types can be at different locations of the related center or
of inserts. outboard adaptable zones in the passenger cabin.

Size 1 inserts usually hold these types of galley equipment:

- Water boilers

- Coffee makers

- Espresso makers

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(27) Fixed Galleys

Potable water for the galleys comes from the water tanks aft of the bulk cargo
Teaching Points compartment.
1. There can be different galley configurations in the fixed forward and aft
locations.

Student Notes The galley liquid and small solid waste goes to the vacuum waste system.
System Description Section (SDS)

These devices in the fixed galley use electrical power:

Purpose
- Area lights

- Call lights
The cabin crew uses the forward and aft fixed galleys to keep and prepare
passenger meals. - Emergency lights

- Information signs

General - Galley inserts.

These are the interface connections for the fixed galley: The air distribution duct supplies conditioned air to the galleys. In-line electrical
heaters supply warm air to the galley.
- Water

- Liquid waste drain

The galley cooling unit (GCU) is above the galley monument. The GCU is a
- Electrical power part of the galley refrigeration system (GRS) which supplies cold air to the
galley food
- Conditioned air
carts. (See ATA 21 for more information.)
- Refrigeration air

- Ventilation
The lavatory/galley ventilation system moves air through the galley. The
- Inserts. lavatory/galley ventilation system is a draw-through system that uses 2 fans, a
primary and a secondary. The fans are in the bulk cargo area and the air goes

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Forward Passenger Cabin

Looking Forward

25-31-04 Forward Fixed Galley

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out of the airplane near the aft pressurization outflow valve.

For galley insert information, see Galley Equipment.

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Aft Passenger Cabin

Looking Aft

25-31-05 Aft Fixed Galley

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(28) Flexible Galleys The flexible galley can be at different locations in the adaptable zones.

Teaching Points
1. Center flexible galleys include:

- Area, call, and emergency lights

- Information signs

- Oxygen drops

- ECS inlets and outlets

- Speakers

- Task lighting.

2. Flexible galleys can move forward and aft in adaptable zones if the
passenger cabin configuration changes.

Student Notes
System Description Section (SDS)

Purpose

The flight attendants use the flexible galley to keep and prepare meals in the
passenger cabin.

General

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Passenger Cabin
Location set by configuration in Center Flexible Areas

25-31-01 Center Flexible Gallery

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Passenger Cabin
Typical location

25-31-03 Outboard Flexible Galley

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(29) Bar Unit

Teaching Points
1. Flight attendants use the bar unit for food and beverage service in different
areas of the passenger cabin.

2. Bar units can be full-height and counter-height configurations in inboard and

outboard adaptable zone locations.

Student Notes
System Description Section (SDS)

Purpose

The flight attendants use the bar unit for food and beverage service in different
areas of the passenger cabin.

General

Bar units can be full-height and counter-height configurations in adaptable

zone locations.

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Bar
Unit

Bar Unit (Typical Location)

Counter-Height Unit shown, Full-Height Unit almost the same

25-31-06 Bar Unit

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AFT FIXED GALLEY

(TYPICAL)

OUTBOARD FLEXIBLE CENTER FLEXIBLE

FORWARD FIXED GALLEY GALLEY (TYPICAL)
(TYPICAL) GALLEY (TYPICAL)

BAR UNIT (TYPICAL)

ADAPTABLE ZONE FIXED ZONE NO ACTIVE REFRIGERATION

787_0194_0001_V1

ADAPTABLE ZONE FIXED ZONE

LAVATORY (TYPICAL)

GALLEY SYSTEMS (25-30)

LAVATORIES (25-40)
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(30) Purpose - Lavatories

Teaching Points
1. The lavatories give crew and passenger accommodations for personal
hygiene.

Student Notes
System Description Section (SDS)

Purpose

Lavatories give passengers and crew personal hygiene accommodations in

the passenger cabin.

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(31) General Description - Lavatories

There are different lavatory configurations in the passenger cabin. Lavatories
Teaching Points can be at fixed locations or at different locations in the inboard and outboard
1. There are lavatory fixed zones in the forward and aft passenger cabin. adaptable zones.

2. Lavatories at other locations in the passenger cabin are in outboard and Interfaces
center lavatory adaptable zones.

These are typical lavatory interfaces:

3. Typical lavatory interfaces include:
- Electrical power system
- Electrical power
- Lights and speakers
- Lights and speakers
- Smoke detector and fire extinguisher
- Smoke detector and fire extinguisher
- Water and waste system
- Water and waste
- Oxygen system
- Oxygen
- Ventilation system.
- Ventilation.

The water and waste interface connections go into the lavatory through the
4. Water and waste interface connections go through the floor panel. floor panel. The other interface connections go into the lavatory through the
ceiling panel.
- Other interface connections go through the ceiling panel.

Student Notes
System Description Section (SDS) System Description

Lavatories receive 115v ac (right or left ac bus) and 28v dc (right or left dc
bus) from different remote power distribution units (RPDU). Typically lavatories
General on the right side of the passenger cabin connect to the right ac and dc buses,
and lavatories on the left side connect to the left ac and dc buses.

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AFT FIXED GALLEY

(TYPICAL)

OUTBOARD FLEXIBLE CENTER FLEXIBLE

FORWARD FIXED GALLEY GALLEY (TYPICAL)
(TYPICAL) GALLEY (TYPICAL)

BAR UNIT (TYPICAL)

ADAPTABLE ZONE FIXED ZONE NO ACTIVE REFRIGERATION

787_0194_0001_V1

ADAPTABLE ZONE FIXED ZONE

LAVATORY (TYPICAL)

GALLEY SYSTEMS (25-30)

LAVATORIES (25-40)
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(32) Lavatories

Teaching Points
1. Lavatories attach to:

- Seat tracks on the floor

- Airplane structure with support rods.

2. You can unlock the lavatory door from the passenger compartment side of
the door.

3. Outboard lavatories can have an electrically dimmable window.

Student Notes
System Description Section (SDS)

System Description

There are inboard and outboard lavatories. Each lavatory attaches to the seat
tracks on the floor and to the airplane structure with support rods. The lavatory
door can unlock from the passenger compartment side of the door. The
lavatory module goes through the passenger entry doors for installation or
removal.

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Lavatory (Typical)
Outboard Lavatory shown, Inboard Lavatory almost the same

25-41-00 Lavatory
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(1) General Description

Teaching Points
1. The overhead flight crew rest (OFCR) has these parts:

- Entrance enclosure

- Seat

- Bunk module.

2. The overhead flight attendant rest (OFAR) has these parts:

- Entrance enclosure

- Forward bunk module

- Aft bunk module.

Student Notes
System Description Section (SDS)

General

Seat track fittings attach the entrance enclosure module to seat tracks in the
floor. Tie rods give lateral support and attach the top part of the module to the
airplane. A door at the cabin floor level has a latch that opens with a code that
the airline sets. A stairway in the entrance enclosure module goes up to the
bunk module. The entrance enclosure module also has external compartments
for the stowage of galley carts.

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OVERHEAD FLIGHT CREW REST

(OFCR)
787_0032_0001_V3

OVERHEAD FLIGHT ATTENDANT REST

(OFAR)

OVERHEAD CREW REST/OVERHEAD ATTENDANT REST (25-51/52)

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(2) OFCR Entrance Enclosure

Teaching Points
1. The overhead flight crew rest (OFCR) entrance module gives access to the
OFCR seat and bunk module.

Student Notes
System Description Section (SDS)

General

The OFCR entrance enclosure module has door and a stairway with a seat at
the top. A door latch lets the flight crew open the door for access to the
stairway. The door latch has a key code set by the airline.

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OFCR
Entrance
Enclosure
Module above
OFCR Bunk
Ceiling
Module (Ref)
Cabin
Ceiling
OFCR
Entrance
Enclosure
Stairway Module below
With Door Ceiling
Open

FWD
Forward Passenger Cabin
Between Doors 1L and 1R
25-51-21 Overhead Flight Crew Rest Entrance
Enclosure Module
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(3) OFCR Seat

Teaching Points
1. The flight crew can use the OFCR seat during:

- Taxi

- Takeoff

- Landing.

Student Notes
System Description Section (SDS)

General

There is a seat that points aft at the top of the entrance enclosure module. The
seat bottom retracts. There is a seat harness that the flight crew uses during
parts of the flight.

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Overhead Flight Crew Rest

(OFCR)

25-51-11 Overhead Flight Crew Rest Seat

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(4) OFCR Bunk Module

Teaching Points
1. The OFCR bunk module is for use only during flight.

2. There is one emergency hatch in the floor of the right bunk module aft of the
entrance module.

3. The bunk module has:

- Oxygen masks

- Smoke detector.

Student Notes
System Description Section (SDS)

General

The OFCR bunk module is aft of the entrance enclosure module and has 2
bunks for the flight crew. There is a seal between the OFCR bunk module and
the OFCR entrance enclosure.

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Overhead Flight Crew Rest

(OFCR)

25-51-22 Overhead Flight Crew Rest Bunk Module

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(5) OFAR Entrance Enclosure

Teaching Points
1. The overhead attendant crew rest (OFAR) entrance module gives access to
the 2 OFAR bunk modules.

2. Flight attendants can only use the OFAR during flight.

Student Notes
System Description Section (SDS)

General

The OFAR entrance enclosure module has door and a stairway. A door latch
lets the flight attendants open the door for access to the stairway. The door
latch has a key code set by the airline.

There is a seal between the OFAR bunk modules and the OFAR entrance
enclosure.

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OFAR
Aft Bunk
Module
(Ref)
OFAR
Fwd Bunk
Module
(Ref) Cabin
Ceiling

OFAR
Entrance Stairway
Enclosure With
Module Door
Open

FWD
Aft Passenger Cabin
Between Doors 4L and 4R
25-52-21 Overhead Flight Attendant Rest Entrance
Enclosure Module
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(6) OFAR Forward Bunk Module

Teaching Points
1. The forward bunk module has 3 bunks and an emergency hatch in the floor
on the right side.

Student Notes
System Description Section (SDS)

General

The OFAR entrance enclosure module opens into the aft and forward bunk
modules at the top. Each bunk module has 3 bunks. Bunks 1, 2, and 3 are in
the forward bunk module.

There is a secondary escape hatch below bunk 3 on the right side of the
OFAR forward bunk module.

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Overhead Flight
Attendant Rest
(OFAR)

25-52-22 Overhead Flight Attendant Rest

Forward Bunk Module
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(7) OFAR Aft Bunk Module

Teaching Points
1. The aft bunk module has 3 bunks and an emergency hatch in the floor in
the middle.

Student Notes
System Description Section (SDS)

General

The OFAR entrance enclosure module opens into the aft and forward bunk
modules at the top. Each bunk module has 3 bunks. Bunks 4, 5, and 6 are in
the aft bunk module.

There is a secondary escape hatch below bunk 5 on the right side of the
OFAR aft bunk module.

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Overhead Flight
Attendant Rest
(OFAR)

25-52-23 Overhead Flight Attendant Rest

Aft Bunk Module
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(1) General Description

The emergency descent devices are in a compartment above the first
Teaching Points observer seat on the flight deck. The flight crew each hold one of these
1. These are the emergency components: descent devices to go out of the flight deck overhead (crew escape) door. An
inertial reel in the descent device decreases the rate of descent.
- Emergency descent devices on the flight deck

- Decompression warning horns in the overhead flight crew rest (OFCR) and
overhead flight attendant rest (OFAR) A decompression warning horn in the OFCR gives a cabin decompression
alert to the flight crew in the OFCR.
- Door-mounted escape slide packs on each passenger entry door (PED).

A decompression warning horn in the OFAR gives a cabin decompression

2. An emergency evacuation command causes an audio alert through alert to the flight attendants in the OFAR.
speakers in the passenger cabin.

Student Notes
Systems Description Section (SDS) A door-mounted escape slide pack on each passenger entry door (PED)
opens if the PED opens in the armed position. The pack at each PED opens
into a different slide configuration necessary for that location. The extended
slide is also a raft.
Components

There is other emergency equipment at different locations on the flight deck

These are the emergency components: and in the passenger cabin.

- Emergency descent device (4)

- Decompression warning horn - overhead flight crew rest (OFCR) An emergency evacuation system gives an audio evacuation alert in the
passenger cabin.
- Decompression warning horn - overhead flight attendant rest (OFAR)

- Door-mounted escape slide pack (8).

General Description

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RPDU DECOMPRESSION
(TYP) WARNING HORN PASSENGER
(OFAR) ENTRY DOOR
(TYPICAL)

RPDU DECOMPRESSION
(TYP) WARNING HORN
(OFCR)

DOOR-MOUNTED
ESCAPE SLIDE
EMERGENCY PACK BUSTLE
DESCENT
DEVICES

HORN EVAC
SHUT OFF COMMAND

EVAC
COMMAND
EVAC
ON
SPEAKER
(OVERDOOR
ARM
TYPICAL) WORK WORK
LIGHT 1 LIGHT 2
OFF SPEAKER
CABIN
DRIVE MODULE
ZONE
UNIT
OBS AUDIO ATTENDANT
OVRD CONTROL CABIN SWITCH PANEL
SERVICES
J1 J2 J3 J4 J5

PANEL (TYP)
SYSTEM
RDC CONTROLLER
(TYPICAL)

STATUS
787_0033_0001_V4

CONTROL
DATA

COMMON DATA NETWORK

EMERGENCY (787-8) (25-60)

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(2) Emergency Descent Devices

Teaching Points
1. An emergency descent device holds a safe descent rate for a flight crew
member as they go out and down the side of the airplane to the ground.

- Each device has an inertial reel with a friction brake.

2. There are 4 emergency descent devices in the flight deck ceiling.

Student Notes
Systems Description Section (SDS)

Purpose

The flight crew use the escape descent devices to get out of the airplane
during emergency conditions.

General

There are 4 emergency descent escape reels, one for each flight crew
member. The emergency escape descent devices attach to the flight deck
ceiling and are in a compartment near the flight deck overhead (crew escape)
door. The flight crew use the descent devices when they go out of the flight
deck through the overhead door. Each descent device has an inertial reel with
a brake that puts a limit on the speed of descent.

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FWD
Aft
Aft Flight
Flight Deck
Deck Ceiling
Ceiling

Descent
Descent
Devices
Devices

25-61-02 Emergency Descent Device

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(3) Location - Flight Deck

Teaching Points
1. The emergency descent devices are on the flight deck adjacent to the flight
compartment overhead crew escape door above the second observer seat.

Student Notes
None

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(TXLSPHQWDQG)XUQLVKLQJV(VFDSH'HYLFHV

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(4) Decompression Warning Horn

Teaching Points
1. There is a decompression horn in:

- Overhead flight crew rest (OFCR)

- Overhead flight attendant rest (OFAR).

2. The decompression horn gives an audio alert for these conditions:

- Loss of cabin pressure

- PASS OXYGEN switch (P5) is in the ON position.

3. A reset switch on the related attendant switch panel (ASP) can stop horn
operation.

Student Notes
None

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Decompression
Warning Horn

FWD
Overhead Flight Crew Rest (OFCR)
Top of OFCR Entrance Enclosure

25-63-03 Decompression Warning Horn - OFCR

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Decompression
Warning Horn

Overhead Flight Attendant Rest (OFAR)

Top of OFAR Entrance Enclosure
25-63-03 Decompression Warning Horn- OFAR
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(5) Location - OFCR

Teaching Points
1. There is a decompression warning horn at the top of the overhead flight
crew rest (OFCR) entrance enclosure.

Student Notes
None

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(TXLSPHQWDQG)XUQLVKLQJV(PHUJHQF\6LJQDOLQJ(TXLSPHQW2)&5

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(6) Location - OFAR

Teaching Points
1. There is a decompression warning horn at the top of the overhead flight
attendant rest (OFAR) entrance enclosure.

Student Notes
None

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(7) Door-Mounted Escape Slide Pack packs include survival kits and emergency light systems.

Teaching Points
1. A door-mounted escape slide pack at each passenger entry door (PED) The slide packs are not interchangeable and extend from the airplane in
releases and inflates for an emergency evacuation. different directions.

- The slide pack is in a bustle at the bottom of each PED.

2. Each slide pack has a pressurized inflation cylinder.

- You can see the cylinder pressure on a gage through a view port in the top
of the bustle.

Student Notes
Systems Description Section (SDS)

Purpose

The door-mounted escape slide pack gives passengers and crew a fast
evacuation path out of the airplane through each of the 8 passenger entry
doors (PED).

General

A door-mounted escape slide pack attaches to each PED. Doors 2L, 2R, 4L,
and 4R are type A and have 2-lane escape slide packs. Doors 1L, 1R, 3L, and
3R are type C and have 1-lane escape slide packs for a cabin configuration of
up to 300 passengers. Doors 1L and 1R or doors 3L and 3R can be type A if
the cabin configuration holds more than 300 passengers. The escape slide

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Safety Pin
Storage
Pouch Door 2L shown with Slide
deployed
Door with Slide
Pack removed

Door Slide
Pack being
removed
Door 4R shown,
all others similar
Slide Pack with
Safety Pins Slide Bustle
FWD installed Pack (Ref)

25-66-01 Door-Mounted Escape Slide Pack

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(8) Location - PED

Teaching Points
1. There is a door-mounted escape slide pack on each passenger entry door
(PED).

Student Notes
None

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(9) Operation - Evacuation 787-8 - EVAC COMMAND switch - sets an evacuation alert in the passenger cabin
(flight deck EVAC COMMAND switch in ARM)
Teaching Points - HORN SHUT OFF switch - stops the audio evacuation alert
1. An emergency evacuation system has controls at these locations:
- EVAC indication - on when there is an evacuation command.
- Observer audio override control panel on the flight deck

- Attendant switch panels (ASP) at passenger entry doors (PED).

6. CZUs monitor the ASP switches in the related cabin zone.

2. The EVAC COMMAND switch on the observer audio override control panel
has these positions: 7. An evacuation command causes an audio alert at a speaker near the
related PED.
- OFF - no evacuation alert

- ARM - flight attendants can set an evacuation alert from the passenger Student Notes
cabin Systems Description Section (SDS)

- ON - sets an evacuation alert in the passenger cabin. Flight Deck Controls

The observer audio override control panel has an EVAC (evacuation)

COMMAND switch that has these positions:
3. A remote data concentrator (RDC) puts the switch positions as data on the - ON - causes evacuation horn sounds to come on at passenger entry doors
common data network (CDN). (PED)
- ARM - gives control of the evacuation horn to the flight attendant stations in
the passenger cabin
- OFF (guarded) - sets the evacuation horn off.
4. The cabin services system controller (CSSC) in the cabin core systems
monitors the data for an audio alert from the flight deck. Passenger Cabin Controls and Indications

- The CSSC sends data to the cabin zone units (CZU) that causes speaker Related attendant switch panels (ASP) have these switches and indicators:
drive modules (SDM) to give an audio alert. - HORN SHUT OFF switch and indicator - stops the evacuation horn sound
in the related PED area
- EVAC COMMAND switch (guarded) - causes the evacuation horn sounds
to come on if the EVAC COMMAND switch on the flight deck is in the ARM
5. ASPs have these controls and indications: position
- EVAC COMMAND switch indicator - comes on red when you push the
related EVAC COMMAND switch

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- EVAC indicator - flashes red when the EVAC COMMAND switch in the
flight deck is set to ON or a flight attendant pushes an EVAC COMMAND
switch on one of the ASPs.

The switch and indication discretes from each attendants switch panel connect
to the related cabin zone unit (CZU) in the cabin services systems. The 3
CZUs in the cabin have an interface with the CSSC. If the CSSC gets data for
EVAC ARM (flight deck), the EVAC COMMAND switch at an ASP can cause
the audio alert to come on.

The EVAC COMMAND switch has an inhibit when the airplane is in the air to
prevent accidental operation of the evacuation horn.

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B787-81205-A0102-00
787 SYSTEM DESCRIPTION SECTION

ICN-B787-A-000051-A-81205-02302-A
Figure 1 Emergency - Evacuation - Operation

Applicable to: ALL

B787-A-25-60-00-04A-110A-A
25-60-00-008

Aug 15/2011 Page 2

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(10) Operation - Evacuation 787-9 Flight Deck Controls

The observer audio override control panel has an EVAC (evacuation)

Teaching Points COMMAND switch that has these positions:
- ON - causes evacuation horn sounds to come on at passenger entry doors
1. An emergency evacuation system has controls at these locations: (PED)
- Observer audio override control panel on the flight deck - ARM - gives control of the evacuation horn to the flight attendant stations in
- Attendant switch panels (ASP) at passenger entry doors (PED). the passenger cabin
- OFF (guarded) - sets the evacuation horn off.
2. The EVAC COMMAND switch on the observer audio override control panel
has these positions: Passenger Cabin Controls and Indications
- OFF - no evacuation alert
- ARM - flight attendants can set an evacuation alert from the passenger Related attendant switch panels (ASP) have these switches and indicators:
cabin - HORN SHUT OFF switch and indicator - stops the evacuation horn sound
- ON - sets an evacuation alert in the passenger cabin. in the related PED area
- EVAC COMMAND switch (guarded) - causes the evacuation horn sounds
3. A remote data concentrator (RDC) puts the switch positions (flight deck) as to come on if the EVAC COMMAND switch on the flight deck is in the ARM
data on the common data network (CDN). position
- EVAC COMMAND switch indicator - comes on red when you push the
4. Switch and indication discretes from each attendant switch panel (ASP) related EVAC COMMAND switch
connect to a related remote data concentrator(RDC). - EVAC indicator - flashes red when the EVAC COMMAND switch in the
flight deck is set to ON or a flight attendant pushes an EVAC COMMAND
5. If there is EVAC ARM data (flight deck) on the common data network switch on one of the ASPs.
(CDN), the EVAC COMMAND switch at an ASP can cause the audio alert to
come on through RDC, CSSC, CZU, then to the speaker drive module. The switch and indication discretes from each attendant switch panel connect
to a related remote data concentrator (RDC). If there is EVAC ARM data (flight
6. ASPs have these controls and indications: deck) on the common data network (CDN), the EVAC COMMAND switch at an
- EVAC COMMAND switch - sets an evacuation alert in the passenger cabin ASP can cause the audio alert to come on.
(flight deck EVAC COMMAND switch in ARM)
- HORN SHUT OFF switch - stops the audio evacuation alert The EVAC COMMAND switch is inhibited when the airplane is in the air to
- EVAC indication - on when there is an evacuation command. prevent accidental operation of the evacuation horn.

7. An evacuation command causes an audio alert at a speaker near the

related PED.

Student Notes

Systems Description Section (SDS)

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Boeing 787-8/9/10 (GEnx) ATA 25

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This document and all information contained herein is the sole
property of AVIET. No intellectual property rights are granted
by the delivery of this document or the disclosure of its
content. This document shall not be reproduced or
disclosed to a third party without the express written consent
of AVIET. This document and its content shall not be used for
any purpose other than that for which it is supplied.
The statements made herein do not constitute an offer. They
are based on the mentioned assumptions and are expressed
in good faith. Where the supporting grounds for these
statements are not shown, AVIET will be pleased to explain
the basis thereof.

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