Leonardo S.p.A.
Via Giovanni Agusta, 520
21017 Cascina Costa di Samarate (VA) Italy
Tel.: +39 0331 229111 - Fax: +39 0331 229605/222595
SERVICE BULLETIN N° 139-603
DATE: September 6, 2019
REV. : /-
TITLE
ATA 93 – FLIR SS380HDC TFU VARIANT
REVISION LOG
First Issue
An appropriate entry should be made in the aircraft log book upon accomplishment.
If ownership of aircraft has changed, please, forward to new owner.
Page 1 of 16
1. PLANNING INFORMATION
A. EFFECTIVITY
AW139 helicopters S/N 31571, 31579, 31586 and 31590.
B. COMPLIANCE
At Customer's option.
C. CONCURRENT REQUIREMENTS
N.A.
D. REASON
This Service Bulletin is issued in order to provide the necessary instructions on how to
complete the installation of the FLIR SS380HDc according to TFU variant
P/N 3G9350P02211.
E. DESCRIPTION
The FLIR SS380HDc TFU variant P/N 3G9350P02211 replaces the Turret FLIR Unit
(TFU) P/N 3290004-638 with the TFU P/N 3290008-7007.
With respect to the TFU general characteristics of the FLIR 380HD, the new one is
lighter and smaller than the previous. The new TFU will be positioned under the nose
of the helicopter, in the same position of the other TFU. The structural and electrical
provisions already installed can be used for the installation of the new TFU.
The following three lasers are installed in the TFU:
Laser Pointer/Illuminator (class 3b-4)
Eye-Safe Laser Rangefinder (class 1)
•
Covert Active Laser Illuminator (class 4).
•
•
NOTE
Supplement n°43 of RFM is dedicated to kit FLIR
SS380HDc and contains information about limitations,
procedures and performance data related to this kit.
F. APPROVAL
The technical content of this Service Bulletin is approved under the authority of DOA
nr. EASA.21.J.005. For helicopters registered under other Aviation Authorities, before
applying the Service Bulletin, applicable Aviation Authority approval must be checked
within Leonardo Helicopters customer portal.
S.B. N°139-603
DATE: September 6, 2019
Page 2 of 16 REVISION: /
EASA states mandatory compliance with inspections, modifications or technical
directives and related time of compliance by means of relevant Airworthiness
Directives.
If an aircraft listed in the effectivity embodies a modification or repair not LHD certified
and affecting the content of this Service Bulletin, it is responsibility of the
Owner/Operator to obtain a formal approval by Aviation Authority having jurisdiction on
the aircraft, for any adaptation necessary before incorporation of the present Service
Bulletin.
G. MANPOWER
To comply with this Service Bulletin twenty (20) MMH are deemed necessary.
MMH are based on hands-on time and can change with personnel and facilities
available.
H. WEIGHT AND BALANCE
WEIGHT (Kg) 29
ARM (mm) MOMENT (Kgmm)
LONGITUDINAL BALANCE 881 25549
LATERAL BALANCE 30 870
I. REFERENCES
1) PUBLICATIONS
DATA MODULE DESCRIPTION PART
DM01 39-A-00-20-00-00A-120A-A Helicopter on ground for a safe -
maintenance
DM02 39-A-11-00-01-00A-720A-A Decal - Install procedure -
DM03 39-A-20-00-00-00A-711A-A Threaded fasteners - Tighten -
procedure
DM04 39-B-93-55-00-00A-369A-K Thermal imaging system - -
Bonding check - Other check
DM05 39-B-93-55-08-00A-720A-K Cover - Install procedure -
DM06 39-B-93-55-09-00A-720A-K Cover - Install procedure -
2) ACRONYMS
AMDI Aircraft Material Data Information
AMP Aircraft Maintenance Publication
AR As Required
DM Data Module
DOA Design Organization Approval
S.B. N°139-603
DATE: September 6, 2019
REVISION: / Page 3 of 16
EASA European Aviation Safety Agency
ITEP Illustrated Tools and Equipment Publication
LHD Leonardo Spa Helicopters
MMH Maintenance-Man-Hours
QDD Quick Disconnect Device
RFM Rotorcraft Flight Manual
SB Service Bulletin
TFU Turret FLIR Unit
3) ANNEX
N.A.
J. PUBLICATIONS AFFECTED
N.A.
K. SOFTWARE ACCOMPLISHMENT SUMMARY
N.A.
S.B. N°139-603
DATE: September 6, 2019
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2. MATERIAL INFORMATION
A. REQUIRED MATERIALS
1) PARTS
# P/N ALTERNATIVE P/N DESCRIPTION Q.TY LVL NOTE LOG P/N
FLIR SS380HDC TFU
1 3G9350P02211 REF . -
VARIANT
FLIR SS380 HDC TFU
2 3G9350I00231 REF .. -
V.C.D.
3 3290008-7007 Turret FLIR Unit (TFU) 1 ... 139-603L1
4 A016A004B1 Identification plate 1 ... 139-603L1
5 AW003DBHL003E01H Decal 1 ... 139-603L1
6 A519A-A000 Gasket 1 E 139-603L1
7 3G5331P00931 3G5331A45731 LH LWR panel 1 ... (1) 139-603L1
8 3G5331P01051 3G5331A20451 RH LWR panel 1 ... (2) 139-603L1
9 3G5331A65451 Bracket 1 ... (4) 139-603L1
10 QDD-1 Quick Disconnect Device 1 ... 139-603L1
11 MS21071-08 Nutplates 4 139-603L1
2) CONSUMABLES
The following consumable materials, or equivalent, are necessary to accomplish this
Service Bulletin:
# Spec./LHD code number DESCRIPTION Q.TY NOTE PART
12 EN6049-006 Braided sleeve AR (3) -
13 MS20995C32 Lockwire (C014) AR (3) -
14 MS20426AD3 Rivet 8 (3) -
Refer also to AMDI for the consumable materials required to comply with the AMP
DM referenced in the accomplishment instructions.
3) LOGISTIC MATRIX
In order to apply this Service Bulletin, the following Logistic P/N can be ordered in
accordance with the applicable notes:
LOGISTIC P/N Q.TY (PER HELO) NOTE PART
139-603L1 1 - -
NOTE
(1) As alternative, the part could be obtained reworking P/N 3G5331A45731.
(2) As alternative, the part could be obtained reworking P/N 3G5331A45731.
(3) Item to be procured as local supply.
(4) This item can be manufactured locally according to Figures 6 and 7 (refer to
spec. AMS-QQ-A-250/5, thickness 1.02 mm, initial treatment T0, final treatment
T42, finish with primer).
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DATE: September 6, 2019
REVISION: / Page 5 of 16
B. SPECIAL TOOLS
Refer to ITEP for the special tools required to comply with the AMP DM referenced in
the accomplishment instructions.
C. INDUSTRY SUPPORT INFORMATION
Customization.
S.B. N°139-603
DATE: September 6, 2019
Page 6 of 16 REVISION: /
3. ACCOMPLISHMENT INSTRUCTIONS
GENERAL NOTES
a) Place an identification tag on all components that
are re-usable, including the attaching hardware that
has been removed to gain access to the
modification area and adequately protect them until
their later re-use.
b) Protect properly all those equipment not removed
from area affected by the modification during
installation procedure.
c) Let the adhesive cure at room temperature for at
least 24 hours, unless otherwise specified.
d) All lengths are in mm.
1. In accordance with AMP DM 39-A-00-20-00-00A-120A-A, prepare the helicopter on
ground for a safe maintenance. Disconnect the battery, all electrical power sources
and/or the external power supply.
2. With reference to Figure 3 Detail A, remove the lower panel P/N 3G5331A19231; keep
hardware for later reuse.
3. With reference to Figure 2 Isoview 1, check the installation of the vendor identification
labels on the TFU P/N 3290008-7007.
4. With reference to Figure 2 Isoview 1, apply the identification plate P/N A016A004B1 on
the TFU P/N 3290008-7007.
5. With reference to Figure 2 Isoview 1 and in accordance with
AMP DM 39-A-11-00-01-00A-720A-A, apply the decal P/N AW003DBHL003E01H on the
TFU P/N 3290008-7007.
NOTE
If necessary, apply braided sleeves EN6049-006 on
electrical cables to protect the areas where chafing and
contact with structure can occur.
6. Install the TFU P/N 3290008-7007 as described in the following procedure:
NOTE
The QDD upper assy and lower assy are parts of the
quick disconnect device P/N QDD-1.
6.1 With reference to Figure 2 Isoview 2, install the QDD LWR assy on the TFU
P/N 3290008-7007 by means of n°8 screws P/N NAS1351C4H16.
S.B. N°139-603
DATE: September 6, 2019
REVISION: / Page 7 of 16
6.2 With reference to Figure 2 Isoview 2, torque the screws to 6.35Nm; secure the
hardware by means of safety wire P/N MS20995C32.
6.3 Install the four handles, supplied with the TFU, on the TFU P/N 3290008-7007.
6.4 With reference to Figure 3 Detail B, hold the TFU using the four handles and lift it
until the LWR plate assy is against the upper plate.
6.5 With reference to Figure 3 Detail B and C, slowly turn the TFU toward the LOCK
position indicated on the bottom plate.
6.6 With reference to Figure 3 Detail B, install the QDD quick pin.
6.7 With reference to Figure 3 Detail C, torque the locking bolt to 5.6Nm.
6.8 Remove the four handles from the TFU.
6.9 With reference to Figure 4 Detail D, connect the electrical connectors A453P1,
A453P2, A453P3, A453P4 to the relevant TFU connectors.
6.10 With reference to Figure 4 Detail D1, install the bonding strap
P/N 999-7000-09-118 to the TFU by means of existing hardware.
6.11 In accordance with AMP DM 39-A-20-00-00-00A-711A-A, tighten the screw
P/N MS35207-260 to the standard torque value.
6.12 With reference to Figure 4 Detail E, remove the indicated bracket
P/N 3G5331A07851.
6.13 With reference to Figure 4 Detail E, drill n°4 holes thru bracket
P/N 3G5331A65451 and install n°4 nutplates P/N MS21071-08 by means of n°8
rivets P/N MS20426AD3.
6.14 With reference to Figure 4 Detail E, install the bracket P/N 3G5331A65451 by
means of existing hardware.
6.15 With reference to Figure 5 Bottom View, trim RH LWR panel P/N 3G5331A20451
coordinating with the hinge bracket RH P/N 3G5331A05452; re-identify the panel
into P/N 3G5331P01051.
6.16 With reference to Figure 5 Bottom View, trim LH LWR panel P/N 3G5331A45731
coordinating with the hinge bracket LH P/N 3G5331A05352.
6.17 With reference to Figure 5 Section H-H close the indicated panel hole by means
of n°2 plies of fiberglass and adhesive EA934NA; re-identify the panel into
P/N 3G5331P00931.
6.18 With reference to Figure 5 Detail F and in accordance with AMP
DM 39-B-93-55-09-00A-720A-K, install the RH LWR panel P/N 3G5331P01051
by means of existing hardware.
6.19 With reference to Figure 5 Detail G and in accordance with AMP
DM 39-B-93-55-08-00A-720A-K , install the LH LWR panel P/N 3G5331P00931
by means of existing hardware.
S.B. N°139-603
DATE: September 6, 2019
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7. In accordance with applicable steps of AMP DM 39-B-93-55-00-00A-369A-K, perform
the bonding check of the TFU.
8. If the bonding values are out of the acceptable limits, do the operations that follow:
8.1 Make sure that bonding surfaces are cleaned.
8.2 In accordance with applicable steps of AMP DM 39-B-93-55-00-00A-369A-K,
repeat the bonding check of the TFU.
NOTE
Cut the profile of the gasket P/N A519A-A000 to adapt
it to the outline of the TFU.
8.3 If bonding values are still out of the acceptable limits, remove the TFU and re-
install it interposing a conductive gasket P/N A519A-A000 between the TFU and
the structure.
9. In accordance with AMP DMs 39-B-93-55-08-00A-720A-K and
DM 39-B-93-55-09-00A-720A-K install the TFU covers.
10. Remark the kit so obtained as “4G9350F01111” on the Chart A.
11. In accordance with weight and balance changes, update the Chart A (see Rotorcraft
Flight Manual, Part II, section 6).
12. Return the helicopter to flight configuration and record for compliance with this Service
Bulletin on the helicopter logbook.
13. Send the attached compliance form to the following mail box:
cse.aw139.aw@leonardocompany.com
As an alternative, gain access to My Communications section on Leonardo WebPortal
and compile the “Service Bulletin Application Communication”.
S.B. N°139-603
DATE: September 6, 2019
REVISION: / Page 9 of 16
Figure 1
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Figure 2
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Figure 3
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Figure 4
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Figure 5
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Figure 6
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Figure 7
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Please send to the following address:
SERVICE BULLETIN COMPLIANCE FORM Date:
LEONARDO S.p.A.
CUSTOMER SUPPORT & SERVICES - ITALY Number:
PRODUCT SUPPORT ENGINEERING & LICENSES DEPT.
Via Giovanni Agusta, 520
21017 Cascina Costa di Samarate (VA) - ITALY Revision:
Tel.: +39 0331 225036 Fax: +39 0331 225988
Customer Name and Address: Telephone:
Fax:
B.T. Compliance Date:
Helicopter Model S/N Total Number Total Hours T.S.O.
Remarks:
Information:
We request your cooperation in filling this form, in order to keep out statistical data relevant to aircraft configuration up-to-date. The form should be filled in all
its parts and sent to the above address or you can communicate the application also via Technical Bulletin Application Communication Section placed in
Leonardo AW Customer Portal - MyCommunications Area. We thank you beforehand for the information given.
