DOC AIRBUS | AMM A320FInstallation of the Right TRAS Track Lock Harness [PW11]
TASK 78-31-62-400-802-A
Installation of the Right TRAS Track Lock Harness
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 78-31-62-941-053-A ** ON A/C NOT FOR ALL
Subtask 78-31-62-440-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:31:45 UTC
Installation of the Right TRAS Track Lock Harness
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
WARNING:
WEAR APPLICABLE PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN YOU DO THIS TASK. BEFORE YOU USE PPE, READ, UNDERSTAND AND OBEY ALL INSTRUCTIONS FOR ITS USE. THESE INSTRUCTIONS INCLUDE INSTRUCTIONS FROM THE MANUFACTURER, YOUR EMPLOYER AND GOVERNMENT REGULATIONS. YOU CAN GET INJURED IF YOU DO NOT USE PPE. GET INSTRUCTIONS FROM YOUR EMPLOYER ON WHICH PPE IS NECESSARY.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.PU1-0001) | lint-free cotton cloth |
| (Material No.PU2-0001) | alcohol, isopropyl |
| (Material No.PU4-0002) | epoxy primer, fluid resistant |
| (Material No.PU4-0004A) | curing solution, epoxy primer |
| (Material No.PU4-0005) | thinner |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 70-30-00-918-803-A | Consumable Materials Index for the Nacelle (UTC Aerospace Systems) |
| TASK 71-00-00-860-832-A | Procedure to Prevent Engine Motoring and to Stop the Electrical Supply to the EEC |
| TASK 71-13-00-010-802-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-802-A | Closing of the Fan Cowl Doors |
| TASK 73-25-34-400-802-A | Installation of the Engine Interface Unit (EIU) |
| TASK 78-30-00-040-805-A | Deactivation of the Thrust Reverser System for Ground Maintenance |
| TASK 78-30-00-440-805-A | Reactivation of the Thrust Reverser System after Ground Maintenance |
| TASK 78-31-00-710-805-A | Operational Test of Thrust Reverser with MCDU |
| TASK 78-31-00-710-805-A-01 | Thrust Reverser Cycling Test (Engine Running) |
Right TRAS Track Lock HarnessSubtask 78-31-62-941-053-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Make sure that you did the procedure to prevent engine motoring and to stop the electrical supply to the Electronic Engine Control (EEC)
(Ref. AMM TASK 71-00-00-860-832)
Subtask 78-31-62-865-054-A ** ON A/C NOT FOR ALL (1) Make sure that you did the procedure to prevent engine motoring and to stop the electrical supply to the Electronic Engine Control (EEC)
(Ref. AMM TASK 71-00-00-860-832)
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 78-31-62-010-060-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENG 1) | |||
| 121VU | ENG1/REV/LOCK | 1EG1 | N44 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENG1/REV/LOCK | 1EG1 | R44 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENG 2) | |||
| 121VU | ENG2/REV/LOCK | 1EG2 | N45 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENG2/REV/LOCK | 1EG2 | R45 |
C. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.
Subtask 78-31-62-040-054-A ** ON A/C NOT FOR ALL (1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.
D. Deactivation of the Thrust Reverser System for Maintenance
Subtask 78-31-62-010-061-A ** ON A/C NOT FOR ALL 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 you did the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805). E. Get Access
(1) Get access to the TRAS track-lock harness on the forward frame of the thrust reverser cowl door.
4. Procedure(1) Get access to the TRAS track-lock harness on the forward frame of the thrust reverser cowl door.
CAUTION:
MAKE SURE THAT THE ELECTRICAL CONNECTOR AND RECEPTACLE ARE CLEAN WHEN YOU CONNECT THEM. DIRTY CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.
CAUTION:
USE PLIERS THAT HAVE TEFLON JAWS TO TIGHTEN THE ELECTRICAL CONNECTORS. DO NOT USE PLIERS THAT HAVE METAL JAWS. METAL JAWS CAN CAUSE DAMAGE TO THE ELECTRICAL CONNECTORS.
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 78-31-62-420-052-A ** ON A/C NOT FOR ALL A. Installation of the Right TRAS Track Lock Harness (3)
(1) Removal of the protection covers
(2) Mix thePU4-0002 epoxy primer, fluid resistant PU4-0004A curing solution, epoxy primer
(3) Attach the right TRAS track lock harness (3) (40510VC) to the torque box disconnect panel. Use the four screws (2) and the four washers (1). Wet install the screws (2) with thePU4-0002 epoxy primer, fluid resistant
(a) Tighten the screws (2) with your hand. Then tighten the screws (2) 1/8 to 1/4 of a turn more.
(4) Connect the pylon TRAS track lock harness (4051VC-A) to the right TRAS track lock harness (3) (4051VC) with PLIERS - CONNECTOR, JAW, SOFT.
(a) Turn the connector finger-tight. Turn the connector 1/4 turn more with PLIERS - CONNECTOR, JAW, SOFT.
(5) Put the clamp (6) on the right TRAS track lock harness (3).
(6) Remove the bolt (4), washer (5) and right TRAS monitoring harness clamp.
(7) Clean the faying surface with a clean lint-free cotton cloth (Material No.PU1-0001) made moist withPU2-0001 alcohol, isopropyl
(8) Remove thePU2-0001 alcohol, isopropyl
(9) Look at the surface of the torque box where you will install the right TRAS monitoring harness clamp below the clamp (6). Make sure the surface has a layer of paint and you can see no bare metal. If part of the surface is without paint, apply a layer of thePU4-0002 epoxy primer, fluid resistant
(10) Attach the right TRAS track lock harness (3), the clamp (6), the right TRAS monitoring harness and the right TRAS monitoring harness clamp on the torque box with the bolt (4) and washer (5). Put the clamp (6) on top of the right TRAS monitoring harness clamp. Wet install the bolt (4) with thePU4-0002 epoxy primer, fluid resistant
(12) Remove the two bolts (9), two washers (8) and the two right TRAS monitoring harness clamps.
(13) Clean the faying surface with a clean lint-free cotton cloth (Material No.PU1-0001) made moist withPU2-0001 alcohol, isopropyl
(14) Remove thePU2-0001 alcohol, isopropyl
(15) Look at the surfaces of the torque box where you will install the right TRAS monitoring harness clamps below the clamps (7). Make sure the surfaces have a layer of paint and you can see no bare metal. If part of a surface is without paint, apply a layer of thePU4-0002 epoxy primer, fluid resistant
(16) Attach the right TRAS track lock harness (3), the two clamps (7), the right TRAS monitoring harness and the two right TRAS monitoring harness clamps on the torque box with the two bolts (9) and the two washers (8). Put the two clamps (7) on top of the two right TRAS monitoring harness clamps. Wet install the bolts (9) with thePU4-0002 epoxy primer, fluid resistant
(18) Remove the five bolts (12), five washers (11) and the five right TRAS monitoring clamps.
(19) Attach the right TRAS track lock harness (3), five clamps (10), right TRAS monitoring harness and five right TRAS monitoring harness clamps on the torque box with the five bolts (12) and five washers (11). Put the five clamps (10) on top of the five right TRAS monitoring harness clamps. Wet install the bolts (12) with thePU4-0002 epoxy primer, fluid resistant
(21) Remove the four nuts (13) and the eight washers (14) that attach the four right TRAS monitoring harness clamps, the right TRAS monitoring harness and the four supports to the torque box.
(22) Attach the right TRAS track lock harness (3), the four clamps (15), the right TRAS monitoring harness, the four right TRAS monitoring harness clamps, and the four supports on the torque box. Use the four nuts (13) and the eight washers (14). Put the four clamps on top of the four clamps (15). Wet install the nuts (13) with thePU4-0002 epoxy primer, fluid resistant
(24) Remove the bolt (16), washer (17) and the right TRAS monitoring harness clamp.
(25) Attach the right TRAS track lock harness (3), the clamp (18), the right TRAS monitoring harness and the right TRAS monitoring clamp on the torque box with the bolt (16) and washer (17). Put the clamp (18) on top of the right TRAS monitoring harness clamp. Wet install the bolt (16) with thePU4-0002 epoxy primer, fluid resistant
(27) Remove the bolt (21), washer (20) and the right TRAS monitoring harness clamp.
(28) Clean the faying surface with a clean lint-free cotton cloth (Material No.PU1-0001) made moist withPU2-0001 alcohol, isopropyl
(29) Remove thePU2-0001 alcohol, isopropyl
(30) Look at the surfaces of the torque box where you will install the clamp (19). Make sure the surfaces have a layer of paint and you can see no bare metal. If part of a surface is without paint, apply a layer of thePU4-0002 epoxy primer, fluid resistant
(31) Attach the right TRAS track lock harness (3), the clamp (19), the right TRAS monitoring harness and the right TRAS monitoring harness clamp on the torque box with the bolt (21) and washer (20). Put the right TRAS monitoring harness clamp on top of the clamp (19). Wet install the bolt (21) with thePU4-0002 epoxy primer, fluid resistant
(33) Remove the bolt (23), washer (24) and the right TRAS monitoring harness clamp.
(34) Clean the faying surface with a clean lint-free cotton cloth (Material No.PU1-0001) made moist withPU2-0001 alcohol, isopropyl
(35) Remove thePU2-0001 alcohol, isopropyl
(36) Look at the surfaces of the torque box where you will install the right TRAS monitoring harness clamp below the clamp (22). Make sure the surfaces have a layer of paint and you can see no bare metal. If part of a surface is without paint, apply a layer of thePU4-0002 epoxy primer, fluid resistant
(37) Attach the right TRAS track lock harness (3), the clamp (22), the right TRAS monitoring harness and the right TRAS monitoring harness clamp on the torque box with the bolt (23) and washer (24). Put the clamp (22) on top of the right TRAS monitoring harness clamp. Wet install the bolt (23) with thePU4-0002 epoxy primer, fluid resistant
(39) Remove the bolt (27), washer (26) and the right TRAS monitoring harness clamp.
(40) Attach the right TRAS track lock harness (3), the clamp (25), the right TRAS monitoring harness and the right TRAS monitoring harness clamp on the torque box with the bolt (27) and washer (26). Put the right TRAS monitoring harness clamp on top of the clamp (25). Wet install the bolts (9) with thePU4-0002 epoxy primer, fluid resistant
(a) Turn the connector finger-tight. Turn the connector 1/4 turn more with PLIERS - CONNECTOR, JAW, SOFT.
(42) Connect the right TRAS track lock harness (3) terminal lug to the torque box.
(a) Clean the bolt (30) and washers (29) and (28) with a clean lint-free cotton cloth (Material No.PU1-0001) andPU2-0001 alcohol, isopropyl
(b) Remove thePU2-0001 alcohol, isopropyl
(c) Clean the mating surface of the torque box with a clean lint-free cotton cloth (Material No.PU1-0001) andPU2-0001 alcohol, isopropyl
(d) Remove thePU2-0001 alcohol, isopropyl
(e) Attach the right TRAS track lock harness (3) terminal lug to the torque box with the bolt (30) and washers (29) and (28).
(f) Measure the resistance between the right TRAS track lock harness (3) terminal lug and the washer (29). Make sure that it is less than 0.001 ohm. If the resistance is more than 0.001 ohm, remove the hardware and do steps 4.A.(42)(a) thru 4.A.(42)(f) again.
(g) TORQUE the bolt (30) to between 35 and 31.5 lbf.in (0.40 and 0.36 m.daN )
.
(43) Adjust the right TRAS track lock harness (3) to keep the preload to a minimum. Make sure that there are no kinks in the right TRAS track lock harness (3).
(44) Tighten the nuts and bolts.
(a) TORQUE the bolts (4), (9), (12), (16), (21), (23) and (27) to between 35 and 31.5 lbf.in (0.40 and 0.36 m.daN ).
(b) TORQUE the nuts (13) to between 27 and 24 lbf.in (0.31 and 0.27 m.daN ).
5. Close-up(1) Removal of the protection covers
CAUTION:
REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.
(a) Make sure that you remove all the necessary COVER - PROTECTION and CAP - PROTECTION to prevent damage to the engine. (2) Mix the
(3) Attach the right TRAS track lock harness (3) (40510VC) to the torque box disconnect panel. Use the four screws (2) and the four washers (1). Wet install the screws (2) with the
(a) Tighten the screws (2) with your hand. Then tighten the screws (2) 1/8 to 1/4 of a turn more.
(4) Connect the pylon TRAS track lock harness (4051VC-A) to the right TRAS track lock harness (3) (4051VC) with PLIERS - CONNECTOR, JAW, SOFT.
(a) Turn the connector finger-tight. Turn the connector 1/4 turn more with PLIERS - CONNECTOR, JAW, SOFT.
(5) Put the clamp (6) on the right TRAS track lock harness (3).
(6) Remove the bolt (4), washer (5) and right TRAS monitoring harness clamp.
(7) Clean the faying surface with a clean lint-free cotton cloth (Material No.PU1-0001) made moist with
(8) Remove the
(9) Look at the surface of the torque box where you will install the right TRAS monitoring harness clamp below the clamp (6). Make sure the surface has a layer of paint and you can see no bare metal. If part of the surface is without paint, apply a layer of the
(10) Attach the right TRAS track lock harness (3), the clamp (6), the right TRAS monitoring harness and the right TRAS monitoring harness clamp on the torque box with the bolt (4) and washer (5). Put the clamp (6) on top of the right TRAS monitoring harness clamp. Wet install the bolt (4) with the
NOTE: Do not torque the bolt (4) at this time.
(11) Put the two clamps (7) on the right TRAS track lock harness (3). (12) Remove the two bolts (9), two washers (8) and the two right TRAS monitoring harness clamps.
(13) Clean the faying surface with a clean lint-free cotton cloth (Material No.PU1-0001) made moist with
(14) Remove the
(15) Look at the surfaces of the torque box where you will install the right TRAS monitoring harness clamps below the clamps (7). Make sure the surfaces have a layer of paint and you can see no bare metal. If part of a surface is without paint, apply a layer of the
(16) Attach the right TRAS track lock harness (3), the two clamps (7), the right TRAS monitoring harness and the two right TRAS monitoring harness clamps on the torque box with the two bolts (9) and the two washers (8). Put the two clamps (7) on top of the two right TRAS monitoring harness clamps. Wet install the bolts (9) with the
NOTE: Do not torque the bolts (9) at this time.
(17) Put the five clamps (10) on the right TRAS track lock harness (3). (18) Remove the five bolts (12), five washers (11) and the five right TRAS monitoring clamps.
(19) Attach the right TRAS track lock harness (3), five clamps (10), right TRAS monitoring harness and five right TRAS monitoring harness clamps on the torque box with the five bolts (12) and five washers (11). Put the five clamps (10) on top of the five right TRAS monitoring harness clamps. Wet install the bolts (12) with the
NOTE: Do not torque the bolts (12) at this time.
(20) Put the four clamps (15) on the right TRAS track lock harness (3). (21) Remove the four nuts (13) and the eight washers (14) that attach the four right TRAS monitoring harness clamps, the right TRAS monitoring harness and the four supports to the torque box.
(22) Attach the right TRAS track lock harness (3), the four clamps (15), the right TRAS monitoring harness, the four right TRAS monitoring harness clamps, and the four supports on the torque box. Use the four nuts (13) and the eight washers (14). Put the four clamps on top of the four clamps (15). Wet install the nuts (13) with the
NOTE: Do not torque the nuts (13) at this time.
(23) Put the clamp (18) on the right TRAS track lock harness (3). (24) Remove the bolt (16), washer (17) and the right TRAS monitoring harness clamp.
(25) Attach the right TRAS track lock harness (3), the clamp (18), the right TRAS monitoring harness and the right TRAS monitoring clamp on the torque box with the bolt (16) and washer (17). Put the clamp (18) on top of the right TRAS monitoring harness clamp. Wet install the bolt (16) with the
NOTE: Do not torque the bolt (16) at this time.
(26) Put the clamp (19) on the right TRAS track lock harness (3). (27) Remove the bolt (21), washer (20) and the right TRAS monitoring harness clamp.
(28) Clean the faying surface with a clean lint-free cotton cloth (Material No.PU1-0001) made moist with
(29) Remove the
(30) Look at the surfaces of the torque box where you will install the clamp (19). Make sure the surfaces have a layer of paint and you can see no bare metal. If part of a surface is without paint, apply a layer of the
(31) Attach the right TRAS track lock harness (3), the clamp (19), the right TRAS monitoring harness and the right TRAS monitoring harness clamp on the torque box with the bolt (21) and washer (20). Put the right TRAS monitoring harness clamp on top of the clamp (19). Wet install the bolt (21) with the
NOTE: Do not torque the bolt (21) at this time.
(32) Put the clamp (22) on the right TRAS track lock harness (3). (33) Remove the bolt (23), washer (24) and the right TRAS monitoring harness clamp.
(34) Clean the faying surface with a clean lint-free cotton cloth (Material No.PU1-0001) made moist with
(35) Remove the
(36) Look at the surfaces of the torque box where you will install the right TRAS monitoring harness clamp below the clamp (22). Make sure the surfaces have a layer of paint and you can see no bare metal. If part of a surface is without paint, apply a layer of the
(37) Attach the right TRAS track lock harness (3), the clamp (22), the right TRAS monitoring harness and the right TRAS monitoring harness clamp on the torque box with the bolt (23) and washer (24). Put the clamp (22) on top of the right TRAS monitoring harness clamp. Wet install the bolt (23) with the
NOTE: Do not torque the bolt (23) at this time.
(38) Put the clamp (25) on the right TRAS track lock harness (3). (39) Remove the bolt (27), washer (26) and the right TRAS monitoring harness clamp.
(40) Attach the right TRAS track lock harness (3), the clamp (25), the right TRAS monitoring harness and the right TRAS monitoring harness clamp on the torque box with the bolt (27) and washer (26). Put the right TRAS monitoring harness clamp on top of the clamp (25). Wet install the bolts (9) with the
NOTE: Do not torque the bolt (27) at this time.
(41) Connect the right TRAS track lock harness (3) (4142KS-A) to the track lock valve. (a) Turn the connector finger-tight. Turn the connector 1/4 turn more with PLIERS - CONNECTOR, JAW, SOFT.
(42) Connect the right TRAS track lock harness (3) terminal lug to the torque box.
(a) Clean the bolt (30) and washers (29) and (28) with a clean lint-free cotton cloth (Material No.PU1-0001) and
(b) Remove the
(c) Clean the mating surface of the torque box with a clean lint-free cotton cloth (Material No.PU1-0001) and
(d) Remove the
(e) Attach the right TRAS track lock harness (3) terminal lug to the torque box with the bolt (30) and washers (29) and (28).
(f) Measure the resistance between the right TRAS track lock harness (3) terminal lug and the washer (29). Make sure that it is less than 0.001 ohm. If the resistance is more than 0.001 ohm, remove the hardware and do steps 4.A.(42)(a) thru 4.A.(42)(f) again.
(g) TORQUE the bolt (30) to between 35 and 31.5 lbf.in (0.40 and 0.36 m.daN )
. (43) Adjust the right TRAS track lock harness (3) to keep the preload to a minimum. Make sure that there are no kinks in the right TRAS track lock harness (3).
(44) Tighten the nuts and bolts.
(a) TORQUE the bolts (4), (9), (12), (16), (21), (23) and (27) to between 35 and 31.5 lbf.in (0.40 and 0.36 m.daN )
. (b) TORQUE the nuts (13) to between 27 and 24 lbf.in (0.31 and 0.27 m.daN )
. Subtask 78-31-62-440-051-A ** ON A/C NOT FOR ALL
A. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 78-31-62-410-052-A ** ON A/C NOT FOR ALL B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).
Subtask 78-31-62-865-055-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 78-31-62-710-051-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENG 1) | |||
| 121VU | ENG1/REV/LOCK | 1EG1 | N44 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENG1/REV/LOCK | 1EG1 | R44 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENG 2) | |||
| 121VU | ENG2/REV/LOCK | 1EG2 | N45 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENG2/REV/LOCK | 1EG2 | R45 |
D. Test
(1) Make sure that all the circuit breakers shown in the paragraph Procedure of the engine interface unit installation are closed. If they are not, close them in the recommended sequence
(Ref. AMM TASK 73-25-34-400-802)
(2) Do the operational test of the thrust reverser with the MCDU (Ref. AMM TASK 78-31-00-710-805).
(1) Make sure that all the circuit breakers shown in the paragraph Procedure of the engine interface unit installation are closed. If they are not, close them in the recommended sequence
(Ref. AMM TASK 73-25-34-400-802)
(2) Do the operational test of the thrust reverser with the MCDU (Ref. AMM TASK 78-31-00-710-805).