Customer : NIA Manual : AMM

Type : A318/A319/A320/A321 Selected applicability : ALL

Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

** ON A/C 101-150

74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

TASK 74-21-30-000-002-A
Removal of the Spark Igniter

WARNING: BEFORE YOU START WORK ON THE IGNITION SYSTEM, MAKE SURE THAT THE IGNITION
EXCITERS ARE DE-ENERGIZED FOR A MINIMUM OF FIVE MINUTES. ALSO DO NOT TOUCH
THE ELECTRICAL CONTACTS.
THE IGNITION SYSTEM VOLTAGE IS VERY HIGH, AND THE IGNITION EXCITERS CAN HAVE
AN ELECTRICAL CHARGE EVEN WHEN NOT ENERGIZED. IF YOU DO NOT OBEY THESE
PRECAUTIONS, INJURY CAN OCCUR.

CAUTION: BE CAREFUL WITH THE IGNITION LEAD TO PREVENT DAMAGE TO THE CONDUIT AND THE
INTERNAL WIRES.

FIN : 4001JH1 , 4001JH2

1. Reason for the Job
This task gives the data to remove the right spark igniter (system A) or the left spark igniter (system B).
2 Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE QTY DESIGNATION

No specific AR COVER - PROTECTION
No specific AR SAFETY CLIP - CIRCUIT BREAKER
No specific AR WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS ZONE DESCRIPTION

FOR 1000EM1 (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR 1000EM2 (ENGINE-2)
447AL, 448AR, 461AL, 462AR

C. Referenced Information

REFERENCE DESIGNATION
(Ref. 71-13-00-010-040-B). Opening of the Fan Cowl Doors
(Ref. 78-30-00-481-041-B). Make the Thrust Reverser Unserviceable for Maintenance
(Ref. 78-36-00-010-040-B). Opening of the Thrust Reverser Doors
Spark Igniter

Print Date: August 17, 2021 Page 1 of 13

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 Customer : NIA Manual : AMM
Type : A318/A319/A320/A321 Selected applicability : ALL
Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

A
SPARK IGNITER - RIGHT SIDE
4

NOTES:
1 PRE SB 74-002

2 POST SB 74-002
COOLING SHROUD
3 PRE SB 72-164
CAPTIVE 4 POST SB 72-164
GASKET

CERAMIC
INSULATOR
IGNITER
BUSHING SPARK CAGED
IGNITER SPRING
ASSEMBLY COUPLING
NUT
3 RETAINING
RING WHITE 1
CHAMFERED
COOLING SHROUD SILICONE
SEAL COOLING
CERAMIC AIR
SHROUD CLAMP
INSULATOR OULET
2 CAGED
SPRING CAPTIVE
ASSEMBLY SPRING
COUPLING
ASSEMBLY NUT

RETAINING
RING
BLUE
SYMMETRICAL
SILICONE COOLING
SEAL AIR
OULET

6017054-00

N_MM_742130_4_RAM0_01_01

Figure 74(CFMB)-21-30-991-30000-06-A / SHEET 1/2 - Spark Igniter

** ON A/C 101-150

Print Date: August 17, 2021 Page 2 of 13

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 Customer : NIA Manual : AMM
Type : A318/A319/A320/A321 Selected applicability : ALL
Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

A
SPARK IGNITER - LEFT SIDE

COOLING SHROUD

CAPTIVE
GASKET

CERAMIC
INSULATOR
SPARK CAGED
IGNITER IGNITER SPRING
BUSHING ASSEMBLY COUPLING
NUT
1
3 RETAINING
RING WHITE
CHAMFERED
COOLING SHROUD SILICONE
2 SEAL COOLING
CERAMIC AIR
SHROUD CLAMP
INSULATOR OULET
CAGED
SPRING CAPTIVE
ASSEMBLY SPRING
COUPLING
ASSEMBLY NUT

RETAINING
NOTES:
RING
BLUE
1 PRE SB 74-002 SYMMETRICAL
SILICONE COOLING
2 POST SB 74-002 SEAL AIR
OULET
3 PRE SB 72-164

4 POST SB 72-164
6017055-00

N_MM_742130_4_RAM0_02_02

Figure 74(CFMB)-21-30-991-30000-06-A / SHEET 2/2 - Spark Igniter

** ON A/C 101-150

Print Date: August 17, 2021 Page 3 of 13

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 Customer : NIA Manual : AMM
Type : A318/A319/A320/A321 Selected applicability : ALL
Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

3. Job Set-up
Subtask 74-21-30-941-052-A
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this
procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
Subtask 74-21-30-010-055-A
B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040) :
(2) FOR 1000EM1 (ENGINE-1)
437AL, 438AR
(3) FOR 1000EM2 (ENGINE-2)
447AL, 448AR
Subtask 74-21-30-040-054-A
C. Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041) .
Subtask 74-21-30-010-059-A
D. Open the thrust reverser doors (Ref. AMM TASK 78-36-00-010-040) :
(1) FOR 1000EM1 (ENGINE-1)
451AL, 452AR
(2) FOR 1000EM2 (ENGINE-2)
461AL, 462AR
Subtask 74-21-30-865-055-A
E. Open, safety and tag this(these) circuit breaker(s):

PANEL DESIGNATION FIN LOCATION

49VU ENGINE/1 AND 2/IGN/SYS A 1JH A03
FOR FIN 1000EM1 (ENGINE-1)
121VU ENGINE/IGN/ENG1/SYS B 3JH1 P41
121VU ENGINE/IGN/ENG1/SYS A BAT 2JH1 P39
FOR FIN 1000EM2 (ENGINE-2)
121VU ENGINE/IGN/ENG2/SYS B 3JH2 P42
121VU ENGINE/IGN/ENG2/SYS A BAT 2JH2 P40
4. Procedure
(Ref. Fig. Spark Igniter)
Subtask 74-21-30-020-052-A
A. Removal of the Spark Igniter

Print Date: August 17, 2021 Page 4 of 13

© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
 Customer : NIA Manual : AMM
Type : A318/A319/A320/A321 Selected applicability : ALL
Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

CAUTION: MAKE SURE THE HINGE CLAMP NEAREST TO THE SPARK IGNITER IS LOOSE, OR
REMOVED, BEFORE YOU REMOVE THE IGNITION LEAD FROM THE SPARK IGNITER.
THIS WILL PREVENT DAMAGE TO THE CERAMIC TIP OF THE SPARK IGNITER.

(1) Open the first hinge clamp and remove the ignition lead from the clamp.
(2) Disconnect the shroud clamp and remove the cooling shroud.
(3) Remove the ignition lead.

CAUTION: MAKE SURE THAT YOUR HANDS AND TOOLS ARE CLEAN. DO NOT TOUCH THE
IGNITION LEAD OR THE SPARK IGNITER WITH DIRTY OR GREASY HANDS AND
TOOLS, DIRT AND GREASE WILL CAUSE DAMAGE TO THE IGNITION LEAD AND
THE SPARK IGNITER.

(a) Loosen the coupling nut and remove the ignition lead from the spark igniter. Pull the ignition lead
straight out (no side loading) until free from the spark igniter.
PRE SB 74-002
(4) Remove and discard the white chamfered silicone seal and keep the caged spring assembly.
END OF PRE SB 74-002
POST SB 74-002
(5) Remove and discard the blue symmetrical silicone seal.

NOTE: The blue symmetrical silicone seal and white chamfered silicone seal are not interchangeable.

END OF SB 74-002
(6) Install COVER - PROTECTION on the ignition lead.
(7) Remove the spark igniter from the igniter bushing on the combustion case.
(8) Install COVER - PROTECTION on the igniter bushing.

TASK 74-21-30-400-002-A
Installation of the Spark Igniter

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL
MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

FIN : 4001JH1 , 4001JH2

1. Reason for the Job
This task gives the data to install the right spark igniter (system A) or the left spark igniter (system B).
2 Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE QTY DESIGNATION

No specific AR WARNING NOTICE(S)
No specific Torque wrench: range to between 35 and 40 lbf.in
(0.40 and 0.45 m.daN)
No specific Torque wrench: range to between 260 and 290 lbf.in
(2.94 and 3.28 m.daN)

Print Date: August 17, 2021 Page 5 of 13

© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
 Customer : NIA Manual : AMM
Type : A318/A319/A320/A321 Selected applicability : ALL
Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

REFERENCE QTY DESIGNATION

No specific Torque wrench: range to between 540 and 600 lbf.in
(6.10 and 6.78 m.daN)
No specific Torque wrench: range to between 1.24 and 1.36 m.daN
(109.73 and 120.35 lbf.in)

B. Consumable Materials

REFERENCE DESIGNATION
(Material No. CP2101) graphite grease
(Material No. CP2691) penetrant
(Material No. CP8001) lockwire 0.032 in. (0.8 mm) dia.
(Material No. CP8002) lockwire 0.032 in. (0.8 mm) dia

C. Work Zones and Access Panels

ZONE/ACCESS ZONE DESCRIPTION

FOR 1000EM1 (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR 1000EM2 (ENGINE-2)
447AL, 448AR, 461AL, 462AR

D. Expendable Parts

FIG.ITEM DESIGNATION IPC-CSN

10 SEAL 74-21-10-01-110
10 SEAL 74-21-20-01-060

E. Referenced Information

REFERENCE DESIGNATION
(Ref. 71-13-00-010-040-B). Opening of the Fan Cowl Doors
(Ref. 71-13-00-410-040-B). Closing of the Fan Cowl Doors
(Ref. 74-00-00-710-043-A). Operational Test of the Ignition System
(Ref. 74-00-00-710-043-A-01). Operational Test of the Ignition System without CFDS
(Ref. 78-30-00-081-041-B). Make the Thrust Reverser Serviceable after Maintenance
(Ref. 78-30-00-481-041-B). Make the Thrust Reverser Unserviceable for Maintenance
(Ref. 78-36-00-010-040-B). Opening of the Thrust Reverser Doors
(Ref. 78-36-00-410-040-B). Closing of the Thrust Reverser Doors
Spark Igniter
Removal/Installation of the Igniter Bushing - PRE SB 72-0164 SHEET 1
Removal/Installation of the Igniter Bushing - POST SB 72-0164 SHEET 1

Print Date: August 17, 2021 Page 6 of 13

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 Customer : NIA Manual : AMM
Type : A318/A319/A320/A321 Selected applicability : ALL
Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

COMBUSTION CASE

IGNITER PLUG GASKET

IGNITER BUSHING

COMBUSTION CHAMBER

OUTER LINER
COMBUSTOR FERRULE (AFT SIDE OF
(FLOATING FERRULE) IGNITER HOLE)
COMBUSTOR BOSS
IGNITER PLUG GASKET

IGNITER BUSHING
2.534 IN. (64,363 mm)
- 2.550 IN. (64,770 mm)

SECTION
A-A

1133760-02
N_MM_742130_4_RCM0_01_02

Figure 74(CFMB)-21-30-991-30100-06-A / SHEET 1/1 -

Removal/Installation of the Igniter Bushing - PRE SB 72-0164
** ON A/C 101-150

Print Date: August 17, 2021 Page 7 of 13

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 Customer : NIA Manual : AMM
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Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

A
2.529 IN. (64,237 mm)
- 2.545 IN. (64,643 mm)

COMBUSTION CASE

IGNITER PLUG GASKET

IGNITER BUSHING
1227864-01

N_MM_742130_4_RDM0_01_01

Figure 74(CFMB)-21-30-991-30300-06-A / SHEET 1/1 -

Removal/Installation of the Igniter Bushing - POST SB 72-0164
** ON A/C 101-150

Print Date: August 17, 2021 Page 8 of 13

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 Customer : NIA Manual : AMM
Type : A318/A319/A320/A321 Selected applicability : ALL
Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

3. Job Set-up
Subtask 74-21-30-860-051-A
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in
position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND
PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell
persons not to energize the FADEC 1(2).
Subtask 74-21-30-010-058-A
B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-040) :
(a) FOR 1000EM1 (ENGINE-1)
437AL, 438AR
(b) FOR 1000EM2 (ENGINE-2)
447AL, 448AR
(2) Make sure that the thrust reverser doors are open (Ref. AMM TASK 78-36-00-010-040) :
(a) FOR 1000EM1 (ENGINE-1)
451AL, 452AR
(b) FOR 1000EM2 (ENGINE-2)
461AL, 462AR
Subtask 74-21-30-040-055-A
C. Make sure that the thrust reverser is unserviceable (Ref. AMM TASK 78-30-00-481-041) .
Subtask 74-21-30-865-056-A
D. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL DESIGNATION FIN LOCATION

49VU ENGINE/1 AND 2/IGN/SYS A 1JH A03
FOR FIN 1000EM1 (ENGINE-1)
121VU ENGINE/IGN/ENG1/SYS B 3JH1 P41
121VU ENGINE/IGN/ENG1/SYS A BAT 2JH1 P39
FOR FIN 1000EM2 (ENGINE-2)
121VU ENGINE/IGN/ENG2/SYS B 3JH2 P42
121VU ENGINE/IGN/ENG2/SYS A BAT 2JH2 P40
4. Procedure
(Ref. Fig. Spark Igniter)
Subtask 74-21-30-420-055-A
A. Use of a Plastic Drift

CAUTION: ALIGN THE COMBUSTION CHAMBER FERRULE WITH THE COMBUSTION CASE
BOSS AND THE IGNITER BUSHING BEFORE YOU INSTALL THE SPARK IGNITER. IF
NOT, DAMAGE TO THE SPARK IGNITER CAN OCCUR.

(1) Remove the protective covers from the igniter bushing and engage a plastic drift, 0.375 in. (9.52 mm)
maximum diameter, through the igniter bushing, the boss of the combustion case and the combustion
chamber ferrule to align them.

Print Date: August 17, 2021 Page 9 of 13

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 Customer : NIA Manual : AMM
Type : A318/A319/A320/A321 Selected applicability : ALL
Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

Subtask 74-21-30-350-051-A
B. Loosen the ferrule and align it with the igniter bushing and the combustion case boss.
(1) If the ferrule is not easy to move, apply penetrant (Material No. CP2691).
Subtask 74-21-30-420-053-A
C. Installation of the spark igniter
PRE CFMI SB 72-0164
(1) If the igniter bushing was removed, install as follows:
(Ref. Fig. Removal/Installation of the Igniter Bushing - PRE SB 72-0164 SHEET 1)

NOTE: The depth of the spark igniter is controlled by the igniter bushing and igniter plug gasket(s).
Each gasket is 0.015 in. (0.38 mm) in thickness.

(a) Install the igniter plug gaskets that were removed between the igniter bushing and the
combustion case boss.
(b) Temporarily install the igniter bushing in the combustion case boss and tighten with your hand.
(c) Measure the dimension from the top aft side of the igniter bushing to the inner surface of the
combustion chamber outer liner. The dimension must be between 2.534 in. (64.363 mm) and
2.550 in. (64.770 mm).
(d) If the dimension is not between 2.534 in. (64.363 mm) and 2.550 in. (64.770 mm), remove the
igniter bushing and add or remove gaskets as required to get this dimension.
(e) TORQUE the igniter bushing to between 540 and 600 lbf.in (6.10 and 6.78 m.daN).
(f) Make sure the dimension from the top aft side of the igniter bushing to the inner surface of the
combustion chamber outer liner is between 2.534 in. (64.363 mm) and 2.550 in. (64.770 mm).
(g) If the dimension is out of limits, remove the igniter bushing and do steps (b) thru (f) again.
(h) Safety the igniter bushing with lockwire 0.032 in. (0.8 mm) dia. (Material No. CP8001) or lockwire
0.032 in. (0.8 mm) dia (Material No. CP8002) to the adjacent mounting bolt of the fuel nozzle.
END OF PRE CFM SB 72-0164
POST CFMI SB 72-0164
(2) If the igniter bushing was removed, install as follows:
(Ref. Fig. Removal/Installation of the Igniter Bushing - POST SB 72-0164 SHEET 1)

NOTE: The depth of the spark igniter is controlled by the igniter bushing and igniter plug gasket(s).
Each gasket is 0.015 in. (0,38mm) in thickness.

(a) Install two igniter plug gaskets between the igniter bushing and the combustion case boss.
(b) Apply graphite grease (Material No. CP2101) to the threads of the bolts.
(c) Install the igniter bushing on the combustion case with three bolts. Torque the bolts
to between 1.24 and 1.36 m.daN (109.73 and 120.35 lbf.in).
(d) Measure dimension Z from the combustion chamber outer liner inner surface to the top of the
igniter bushing. Measure at the locations just aft of the igniter hole with a depth (hook) gage.
Record this value.
(e) Dimension Z must be 2.529 in. (64.236 mm) and 2.545 in. (64.643 mm). If dimension Z is not
in limits, adjust the number of igniter plug gaskets (one minimum to eight maximum) to get
dimension Z.

Print Date: August 17, 2021 Page 10 of 13

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 Customer : NIA Manual : AMM
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Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

(f) If you remove the igniter bushing to adjust the igniter plug gaskets, torque the bolts
to between 1.24 and 1.36 m.daN (109.73 and 120.35 lbf.in). Make sure dimension Z is still in
limits.
(g) Safety wire the bolts together. Use lockwire 0.032 in. (0.8 mm) dia. (Material No. CP8001) or
lockwire 0.032 in. (0.8 mm) dia (Material No. CP8002).
END OF CFMI SB 72-0164
(3) Install the spark igniter.
(a) Apply a small amount of graphite grease (Material No. CP2101) to the spark igniter threads that
connect with the igniter bushing in the combustion case boss.
(b) Install the spark igniter into the igniter bushing by hand until it touches the bottom. TORQUE the
spark igniter to between 260 and 290 lbf.in (2.94 and 3.28 m.daN).
(c) Remove the protective covers from the ignition lead.
PRE SB 74-002
(d) Install the caged spring assembly to the ignition lead. Make sure that the large shoulder end of
the caged spring assembly is at the contact end of the ignition lead.
(e) Install the ignition lead.

CAUTION: DO NOT APPLY GREASE OR ANY LUBRICANT TO THE THREADS OF THE

CONNECTOR ON THE IGNITION LEAD. GREASE AND LUBRICANTS WILL
CAUSE DAMAGE TO THE IGNITION LEAD AND THE SPARK IGNITER.

CAUTION: MAKE SURE THAT YOUR HANDS AND TOOLS ARE CLEAN. DO NOT TOUCH
THE IGNITION LEAD OR THE SPARK IGNITER WITH DIRTY OR GREASY
HANDS AND TOOLS, DIRT AND GREASE WILL CAUSE DAMAGE TO THE IGNI-
TION LEAD AND THE SPARK IGNITER.

1 Install the new white chamfered silicone IPC -CSN (74-21-10-01-110) SEAL (10) or white
chamfered silicone IPC -CSN (74-21-20-01-060) SEAL (10) on the ignition lead.
END OF PRE SB 74-002
POST SB 74-002
(f) Install the ignition lead.

CAUTION: DO NOT APPLY GREASE OR ANY LUBRICANT TO THE THREADS OF THE

CONNECTOR ON THE IGNITION LEAD. GREASE AND LUBRICANTS WILL
CAUSE DAMAGE TO THE IGNITION LEAD AND THE SPARK IGNITER.

CAUTION: MAKE SURE THAT YOUR HANDS AND TOOLS ARE CLEAN. DO NOT TOUCH
THE IGNITION LEAD OR THE SPARK IGNITER WITH DIRTY OR GREASY
HANDS AND TOOLS, DIRT AND GREASE WILL CAUSE DAMAGE TO THE IGNI-
TION LEAD AND THE SPARK IGNITER.

1 Install the new blue symmetrical IPC -CSN (74-21-10-01-110) SEAL (10) or blue
symmetrical IPC -CSN (74-21-20-01-060) SEAL (10) on the ignition lead.
END OF SB 74-002
(g) Carefully put the ignition lead end into the spark igniter connector and tighten the ignition lead
coupling nut by hand.
1 TORQUE the connector nut to between 260 and 290 lbf.in (2.94 and 3.28 m.daN).
(h) Assemble the 2 piece cooling shroud onto the flange of the ignition lead, and secure with the
shroud clamp.

Print Date: August 17, 2021 Page 11 of 13

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Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

1 Install the shroud clamp and TORQUE the shroud clamp to between 35 and 40 lbf.in
(0.40 and 0.45 m.daN). Make sure there is sufficient clearance between the shroud clamp,
the cooling shroud and the fuel manifold and nozzles.
(i) Install the ignition lead in the hinged clamp nearest to the spark igniter. Turn the attachment
bolt one-quarter turn to engage the locking feature, and continue to tighten until the ignition lead
cannot be moved in the clamp.
Subtask 74-21-30-865-057-A
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL DESIGNATION FIN LOCATION

49VU ENGINE/1 AND 2/IGN/SYS A 1JH A03
FOR FIN 1000EM1 (ENGINE-1)
121VU ENGINE/IGN/ENG1/SYS B 3JH1 P41
121VU ENGINE/IGN/ENG1/SYS A BAT 2JH1 P39
FOR FIN 1000EM2 (ENGINE-2)
121VU ENGINE/IGN/ENG2/SYS B 3JH2 P42
121VU ENGINE/IGN/ENG2/SYS A BAT 2JH2 P40
Subtask 74-21-30-710-051-A
E. Do an operational test of the ignition system (Ref. AMM TASK 74-00-00-710-043) .
5. Close-up
Subtask 74-21-30-410-057-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser doors (Ref. AMM TASK 78-36-00-410-040) :
(a) FOR 1000EM1 (ENGINE-1)
451AL, 452AR
(b) FOR 1000EM2 (ENGINE-2)
461AL, 462AR
Subtask 74-21-30-440-053-A
B. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041) .
Subtask 74-21-30-410-054-A
C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040) :
(a) FOR 1000EM1 (ENGINE-1)
437AL, 438AR
(b) FOR 1000EM2 (ENGINE-2)
447AL, 448AR
(2) Remove the WARNING NOTICE(S).
Figure 74(CFMB)-21-30-991-30000-06-A / SHEET 1/2 - Spark Igniter
Figure 74(CFMB)-21-30-991-30000-06-A / SHEET 2/2 - Spark Igniter
Figure 74(CFMB)-21-30-991-30100-06-A / SHEET 1/1 - Removal/Installation of the Igniter Bushing - PRE SB 72-
0164
Figure 74(CFMB)-21-30-991-30300-06-A / SHEET 1/1 - Removal/Installation of the Igniter Bushing - POST SB 72-
0164

Print Date: August 17, 2021 Page 12 of 13

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 Customer : NIA Manual : AMM
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Rev. Date : May 01, 2021
74-21-30 PB 401 CONF 06 - SPARK IGNITER - REMOVAL/INSTALLATION

End of document

Print Date: August 17, 2021 Page 13 of 13

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