W DOC AIRBUS | AMM A320F

Installation of the Pylon Fire-Detector Harness

TASK 26-12-63-400-802-A
Installation of the Pylon Fire-Detector Harness

WARNING: MAKE SURE THAT THE ENGINE SHUTDOWN OCCURRED NOT LESS THAN FIVE MINUTES BEFORE YOU DO THIS PROCEDURE. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING: YOU MUST NOT TOUCH HOT PARTS WITHOUT APPLICABLE GLOVES. HOT PARTS CAN CAUSE AN INJURY.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 415
ZONE: 425
ZONE: 473
ZONE: 483
FIN: 31WD1
FIN: 31WD2
FIN: 32WD1
FIN: 32WD2
FIN: 41WD1
FIN: 41WD2
FIN: 42WD1
FIN: 42WD2
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 2.82 and 2.25 m.N (24.96 and 19.91 lbf.in ) T
No specific
Torque wrench: range to between 3.95 and 3.38 m.N (34.96 and 29.91 lbf.in ) T
FOR [31WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP A STUD A)
FOR [31WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP A STUD A)
No specific
1
WRENCH - STANDARD
No specific
Torque wrench: range to between 3.95 and 3.38 m.N (34.96 and 29.91 lbf.in ) T
No specific
Torque wrench: range to between 4.51 and 3.95 m.N (39.91 and 34.96 lbf.in ) T
FOR [32WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP A STUD C)
FOR [32WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP A STUD C)
No specific
1
WRENCH - STANDARD
No specific
Torque wrench: range to between 3.95 and 3.38 m.N (34.96 and 29.91 lbf.in ) T
No specific
Torque wrench: range to between 4.51 and 3.95 m.N (39.91 and 34.96 lbf.in ) T
FOR [41WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP B STUD A)
FOR [41WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP B STUD A)
No specific
1
WRENCH - STANDARD
No specific
Torque wrench: range to between 3.95 and 3.38 m.N (34.96 and 29.91 lbf.in ) T
No specific
Torque wrench: range to between 4.51 and 3.95 m.N (39.91 and 34.96 lbf.in ) T
FOR [42WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP B STUD C)
FOR [42WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP B STUD C)
No specific
1
WRENCH - STANDARD
No specific
Torque wrench: range to between 3.95 and 3.38 m.N (34.96 and 29.91 lbf.in ) T
No specific
Torque wrench: range to between 4.51 and 3.95 m.N (39.91 and 34.96 lbf.in ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
FOR [31WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP A STUD A)
FOR [31WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP A STUD A)
(Material No.06BJB1)
Silicone Sealant-High Temp. - -
(Material No.14QDC1)
Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -
(Material No.14RBA2)
Cord-Ligature - High temperature
FOR [32WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP A STUD C)
FOR [32WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP A STUD C)
(Material No.06BJB1)
Silicone Sealant-High Temp. - -
(Material No.14QDC1)
Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -
(Material No.14RBA2)
Cord-Ligature - High temperature
FOR [41WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP B STUD A)
FOR [41WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP B STUD A)
(Material No.06BJB1)
Silicone Sealant-High Temp. - -
(Material No.14QDC1)
Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -
(Material No.14RBA2)
Cord-Ligature - High temperature
FOR [42WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP B STUD C)
FOR [42WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP B STUD C)
(Material No.06BJB1)
Silicone Sealant-High Temp. - -
(Material No.14QDC1)
Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -
(Material No.14RBA2)
Cord-Ligature - High temperature
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
415
LOWER PYLON
425
LOWER PYLON
473
LOWER FAIRING
483
LOWER FAIRING
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
415AL, 415AR, 437AL, 438AR, 451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
425AL, 425AR, 447AL, 448AR, 461AL, 462AR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 24-42-00-861-001-A
Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A
De-energize the Ground Service Network Supplied from the External Power
TASK 26-12-00-710-001-A
Operational Check of Loop/Squib
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
TASK 54-51-21-000-804-A
Removal of the Pylon Lateral Access-Doors
TASK 54-51-21-400-803-A
Installation of the Pylon Lateral Access-Doors
TASK 71-13-00-010-803-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A
Closing of the Fan Cowl Doors
TASK 78-30-00-040-807-A
Deactivation of the Thrust Reverser System for Nacelle Maintenance (ICU)
TASK 78-30-00-440-807-A
Reactivation of the Thrust Reverser System after Nacelle Maintenance (ICU)
TASK 78-36-00-010-806-A
Opening of the Thrust Reverser Cowl Doors
TASK 78-36-00-410-806-A
Closing of the Thrust Reverser Cowl Doors
F
FOR [31WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP A STUD A)
FOR [31WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP A STUD A)
ESPM 203344
FOR [32WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP A STUD C)
FOR [32WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP A STUD C)
ESPM 203344
FOR [41WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP B STUD A)
FOR [41WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP B STUD A)
ESPM 203344
FOR [42WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP B STUD C)
FOR [42WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP B STUD C)
ESPM 203344
3. Job Set-up
Subtask 26-12-63-861-053-A
A. Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
Subtask 26-12-63-860-055-A
B. Safety Precautions
   (1) On the center pedestal, on ENG panel 115VU:
     (a) Make sure that the ENG/MODE selector switch is in the NORM position.
     (b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
     (c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:
  • The ENG/MODE selector switch, and
  • The ENG/MASTER 1(2) control switch.
   (2) On the ENG section of maintenance panel 50VU:
     (a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
Subtask 26-12-63-865-054-A
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENGINE 1)
49VUENGINE/1/FIRE DET/LOOP A7WD1A06
121VUENGINE/ENG1/FIRE DET/LOOP B8WD1Q38
FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENGINE 2)
49VUENGINE/2/FIRE DET/LOOP B8WD2A07
121VUENGINE/ENG2/FIRE DET/LOOP A7WD2Q39
Subtask 26-12-63-010-056-A
D. Get Access
   (1) Make sure that these fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
Subtask 26-12-63-040-053-A
E. Deactivation of the Thrust Reverser for Maintenance
WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
   (1) Make sure that the thrust reverser system is deactivated for nacelle maintenance (Ref. AMM TASK 78-30-00-040-807).
Subtask 26-12-63-010-057-A
F. Get Access
   (1) Make sure that the thrust reverser cowl-doors are open (Ref. AMM TASK 78-36-00-010-806):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR
   (2) Make sure that an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.
   (3) Make sure that these access doors are removed (Ref. AMM TASK 54-51-21-000-804):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
415AL 415AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
425AL 425AR
4. Procedure
Subtask 26-12-63-420-051-B
A. Installation of the Pylon Fire-Detector Harness
CAUTION: DO NOT USE ELECTRICAL OR PNEUMATIC TOOLS TO LOOSEN OR TIGHTEN THE QUARTER-TURN FASTENER ON THE FIRE DETECTOR CLAMP. ONLY USE A MANUAL SCREWDRIVER. ELECTRICAL OR PNEUMATIC TOOLS WILL CAUSE THE FASTENER TO TURN TOO MUCH AND POSSIBLY TO BREAK.
   (1) FOR [31WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP A STUD A), [31WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP A STUD A)
     (a) Do an inspection of the component interfaces and the adjacent area.
     (b) Clean the component interfaces and the adjacent area.
     (c) Make sure that the parts retained from the removed component are clean and in the correct condition.
     (d) Install the sensing element (5) in the plate (13):
       1 Apply Silicone Sealant-High Temp. - - (Material No.06BJB1) between the contact surface of the sensing element (5) and the plate (13).
       2 Carefully engage the sensing element (5) in the plate (13).
       3 Install the nut (26) on the sensing element (5).
       4 Use a second wrench WRENCH - STANDARD to hold the sensing element (5) and TORQUE the nut (26) to between 4.51 and 3.95 m.N (39.91 and 34.96 lbf.in ) T.
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
       5 Safety the two nuts (26) of the sensing elements (3) and (5) with 14QDC1Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -.
     (e) Install the plate (13):
       1 Carefully put the plate (13) and the two sensing elements (3) and (5) in the correct position on the pylon interface (14).
       2 Install the three washers (16) and the bolts (15). Tighten the three bolts (15).
       3 Apply Silicone Sealant-High Temp. - - (Material No.06BJB1) to the bolt ends (15) and the anchor nuts of the bulkhead flange of the plate (13).
     (f) Connect the cable (10) to the sensing element (5):
       1 Install the washer (24), the bolt (23) and the nut (25).
       2 TORQUE the nut (25) to between 3.95 and 3.38 m.N (34.96 and 29.91 lbf.in ) T.
     (g) Install the protective sleeve (12) on the cable (10).
     (h) Safety the protective sleeve (12) with Cord-Ligature - High temperature (Material No.14RBA2) ESPM 203344.
     (i) Engage the cable (10) in the clamp (18):
       1 Put the clamp (18) in position on the plate (17).
       2 Install the bolt (19) and tighten it.
   (2) FOR [32WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP A STUD C), [32WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP A STUD C)
     (a) Do an inspection of the component interfaces and the adjacent area.
     (b) Clean the component interfaces and the adjacent area.
     (c) Make sure that the parts retained from the removed component are clean and in the correct condition.
     (d) Install the sensing element (3) in the plate (13):
       1 Apply Silicone Sealant-High Temp. - - (Material No.06BJB1) between the contact surface of the sensing element (3) and the plate (13).
       2 Carefully engage the sensing element (3) in the plate (13).
       3 Install the nut (26) on the sensing element (3).
       4 Use a second wrench WRENCH - STANDARD to hold the sensing element (3) and TORQUE the nut (26) to between 4.51 and 3.95 m.N (39.91 and 34.96 lbf.in ) T.
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
       5 Safety the two nuts (26) of the sensing elements (3) and (5) with 14QDC1Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -.
     (e) Install the plate (13):
       1 Carefully put the plate (13) and the two sensing elements (3) and (5) in the correct position on the pylon interface (14).
       2 Install the three washers (16) and the bolts (15). Tighten the three bolts (15).
       3 Apply Silicone Sealant-High Temp. - - (Material No.06BJB1) to the bolt ends (15) and the anchor nuts of the bulkhead flange of the plate (13).
     (f) Connect the cable (10) to the sensing element (5):
       1 Install the washer (21), the bolt (20) and the nut (22).
       2 TORQUE the nut (22) to between 3.95 and 3.38 m.N (34.96 and 29.91 lbf.in ) T.
     (g) Install the protective sleeve (12) on the cable (10).
     (h) Safety the protective sleeve (12) with Cord-Ligature - High temperature (Material No.14RBA2) ESPM 203344.
     (i) Engage the cable (10) in the clamp (18):
       1 Put the clamp (18) in position on the plate (17).
       2 Install the bolt (19) and tighten it.
   (3) FOR [41WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP B STUD A), [41WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP B STUD A)
     (a) Do an inspection of the component interfaces and the adjacent area.
     (b) Clean the component interfaces and the adjacent area.
     (c) Make sure that the parts retained from the removed component are clean and in the correct condition.
     (d) Install the sensing element (5) in the plate (13):
       1 Apply Silicone Sealant-High Temp. - - (Material No.06BJB1) between the contact surface of the sensing element (5) and the plate (13).
       2 Carefully engage the sensing element (5) in the plate (13).
       3 Install the nut (26) on the sensing element (5).
       4 Use a second wrench WRENCH - STANDARD to hold the sensing element (5) and TORQUE the nut (26) to between 4.51 and 3.95 m.N (39.91 and 34.96 lbf.in ) T.
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
       5 Safety the two nuts (26) of the sensing elements (3) and (5) with 14QDC1Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -.
     (e) Install the plate (13):
       1 Carefully put the plate (13) and the two sensing elements (3) and (5) in the correct position on the pylon interface (14).
       2 Install the three washers (16) and the bolts (15). Tighten the three bolts (15).
       3 Apply Silicone Sealant-High Temp. - - (Material No.06BJB1) to the bolt ends (15) and the anchor nuts of the bulkhead flange of the plate (13).
     (f) Connect the cable (11) to the sensing element (5):
       1 Install the washer (24), the bolt (23) and the nut (25).
       2 TORQUE the nut (25) to between 3.95 and 3.38 m.N (34.96 and 29.91 lbf.in ) T.
     (g) Install the protective sleeve (12) on the cable (11).
     (h) Safety the protective sleeve (12) with Cord-Ligature - High temperature (Material No.14RBA2) ESPM 203344.
     (i) Engage the cable (11) in the clamp (18):
       1 Put the clamp (18) in position on the plate (17).
       2 Install the bolt (19) and tighten it.
   (4) FOR [42WD1] (HARNESS-FIRE DET, ENG 1 PYLON LOOP B STUD C), [42WD2] (HARNESS-FIRE DET, ENG 2 PYLON LOOP B STUD C)
     (a) Do an inspection of the component interfaces and the adjacent area.
     (b) Clean the component interfaces and the adjacent area.
     (c) Make sure that the parts retained from the removed component are clean and in the correct condition.
     (d) Install the sensing element (3) in the plate (13):
       1 Apply Silicone Sealant-High Temp. - - (Material No.06BJB1) between the contact surface of the sensing element (3) and the plate (13).
       2 Carefully engage the sensing element (3) in the plate (13).
       3 Install the nut (26) on the sensing element (3).
       4 Use a second wrench WRENCH - STANDARD to hold the sensing element (3) and TORQUE the nut (26) to between 4.51 and 3.95 m.N (39.91 and 34.96 lbf.in ) T.
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
       5 Safety the two nuts (26) of the sensing elements (3) and (5) with 14QDC1Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -.
     (e) Install the plate (13):
       1 Carefully put the plate (13) and the two sensing elements (3) and (5) in the correct position on the pylon interface (14).
       2 Install the three washers (16) and the bolts (15). Tighten the three bolts (15).
       3 Apply Silicone Sealant-High Temp. - - (Material No.06BJB1) to the bolt ends (15) and the anchor nuts of the bulkhead flange of the plate (13).
     (f) Connect the cable (11) to the sensing element (5):
       1 Install the washer (21), the bolt (20) and the nut (22).
       2 TORQUE the nut (22) to between 3.95 and 3.38 m.N (34.96 and 29.91 lbf.in ) T.
     (g) Install the protective sleeve (12) on the cable (11).
     (h) Safety the protective sleeve (12) with Cord-Ligature - High temperature (Material No.14RBA2) ESPM 203344.
     (i) Engage the cable (11) in the clamp (18):
       1 Put the clamp (18) in position on the plate (17).
       2 Install the bolt (19) and tighten it.
   (5) Put the sensing element (3) in position on the responder unit (1):
     (a) Install the nut (2) on the responder unit (1).
     (b) TORQUE the nut (2) to between 2.82 and 2.25 m.N (24.96 and 19.91 lbf.in ) T.
   (6) Put the sensing element (5) in position on the responder unit (1):
     (a) Install the nut (4) on the responder unit (1).
     (b) TORQUE the nut (4) to between 3.95 and 3.38 m.N (34.96 and 29.91 lbf.in ) T.
   (7) Engage the two sensing elements (3) and (5) in the two clamps (9).
   (8) Close the two clamps (9) and turn the two quarter-turn fasteners (7) by one quarter of a turn.
   (9) Engage the two sensing elements (3) and (5) in the two clamps (8).
   (10) Close the two clamps (8) and turn the two quarter-turn fasteners (6) by one quarter of a turn.
Subtask 26-12-63-865-055-A
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENGINE 1)
49VUENGINE/1/FIRE DET/LOOP A7WD1A06
121VUENGINE/ENG1/FIRE DET/LOOP B8WD1Q38
FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENGINE 2)
49VUENGINE/2/FIRE DET/LOOP B8WD2A07
121VUENGINE/ENG2/FIRE DET/LOOP A7WD2Q39
Subtask 26-12-63-860-053-A
C. Do the EIS start procedure (upper ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
Subtask 26-12-63-710-051-A
D. Test
   (1) On the upper ECAM DU, make sure that the FIRE ENG1(2) LOOP A (B) FAULT message is out of view.
   (2) Do an operational test of the engine-fire detection system (Ref. AMM TASK 26-12-00-710-001).
Subtask 26-12-63-860-054-A
E. Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
5. Close-up
Subtask 26-12-63-410-052-A
A. Close Access
   (1) Put the aircraft back to its initial configuration.
   (2) Make sure that the work area is clean and clear of tools and other items.
   (3) Close the access doors (Ref. AMM TASK 54-51-21-400-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
415AL 415AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
425AL 425AR
   (4) Remove the access platform(s).
   (5) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-806):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR
Subtask 26-12-63-440-051-A
B. Do the reactivation of the thrust reverser system after nacelle maintenance (Ref. AMM TASK 78-30-00-440-807).
Subtask 26-12-63-410-053-A
C. Close Access
   (1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
   (2) Remove the WARNING NOTICE(S).
Subtask 26-12-63-862-051-A
D. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).
[Rev.10 from 2021] 2026.03.31 23:43:34 UTC
"Aviabrain" 2025