DOC AIRBUS | AMM A320FInstallation of the Right Thrust-Reverser Cascades - ENG NO. 2 [PW11]
TASK 78-32-60-400-802-A
Installation of the Right Thrust-Reverser Cascades - ENG NO. 2
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 78-32-60-941-052-A ** ON A/C NOT FOR ALL
Subtask 78-32-60-420-051-A ** ON A/C NOT FOR ALL
Subtask 78-32-60-860-055-A ** ON A/C NOT FOR ALL Subtask 78-32-60-440-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:33:39 UTC
Installation of the Right Thrust-Reverser Cascades - ENG NO. 2
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.
1. Reason for the JobSelf 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 | Torque wrench: range to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )  |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-00-00-860-833-A | Procedure to Prevent Engine Motoring |
| 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 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 78-32-00-860-802-A | Manual Extension of the Thrust-Reverser Translating Sleeves |
| TASK 78-32-00-860-803-A | Manual Retraction of the Thrust-Reverser Translating Sleeves |
Right Thrust-Reverser Cascades - Engine No. 2Subtask 78-32-60-941-052-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
Subtask 78-32-60-010-054-A ** ON A/C NOT FOR ALL (1) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.
Subtask 78-32-60-040-052-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 [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.
C. Deactivation of the Thrust Reverser System for Maintenance
Subtask 78-32-60-860-054-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). D. Make sure that the right thrust-reverser translating sleeve is extended (Ref. AMM TASK 78-32-00-860-802).
4. ProcedureSubtask 78-32-60-420-051-A ** ON A/C NOT FOR ALL
A. Install the Right Thrust-Reverser Cascades - Engine No. 2.
(1) Install the RH upper middle cascade (4) on the torque box and the cascade ring. Use the 22 bolts (1) and 22 washers (2).
(2) Tighten the bolts (1) on the RH upper middle cascade (4).
(a) TORQUE the opposite pair of bolts (1) in the center of the RH upper middle cascade (4) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
(c) Torque the bolts (1) in opposite pairs from the center of the RH upper middle cascade (4) to the bottom of the cascade.
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
(3) Install the RH lower middle cascade (5) on the torque box and the cascade ring. Use the 22 bolts (1) and 22 washers (2).
(4) Tighten the bolts (1) on the RH lower middle cascade (5).
(a) TORQUE the opposite pair of bolts (1) in the center of the RH lower middle cascade (5) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
(c) Torque the bolts (1) in opposite pairs from the center of the RH lower middle cascade (5) to the bottom of the cascade.
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
(5) Install the RH lower cascade (6) on the torque box and the cascade ring. Use the nine bolts (1) and nine washers (2).
(6) Tighten the bolts (1) on the RH lower cascade (6).
(a) TORQUE the opposite pair of bolts (1) in the center of the RH lower cascade (6) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
(c) Torque the bolts (1) in opposite pairs from the center of the RH lower cascade (6) to the bottom of the cascade.
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
(7) Install the RH upper cascade (3) on the torque box and the cascade ring. Use the eight bolts (1) and eight washers (2).
(8) Tighten the bolts (1) on the RH upper cascade (3).
(a) TORQUE the opposite pair of bolts (1) in the center of the RH upper cascade (3) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
(c) Torque the bolts (1) in opposite pairs from the center of the RH upper cascade (3) to the bottom of the cascade.
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN ).
5. Close-up(1) Install the RH upper middle cascade (4) on the torque box and the cascade ring. Use the 22 bolts (1) and 22 washers (2).
(2) Tighten the bolts (1) on the RH upper middle cascade (4).
(a) TORQUE the opposite pair of bolts (1) in the center of the RH upper middle cascade (4) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. NOTE: When you torque the opposite pairs of bolts (1), first torque the forward bolt (1) on the torque box. Then torque the aft bolt on the cascade ring.
(b) Torque the bolts (1) in opposite pairs from the center of the RH upper middle cascade (4) to the top of the cascade. 1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. (c) Torque the bolts (1) in opposite pairs from the center of the RH upper middle cascade (4) to the bottom of the cascade.
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. (3) Install the RH lower middle cascade (5) on the torque box and the cascade ring. Use the 22 bolts (1) and 22 washers (2).
(4) Tighten the bolts (1) on the RH lower middle cascade (5).
(a) TORQUE the opposite pair of bolts (1) in the center of the RH lower middle cascade (5) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. NOTE: When you torque the opposite pairs of bolts (1), first torque the forward bolt (1) on the torque box. Then, torque the aft bolt on the cascade ring.
(b) Torque the bolts (1) in opposite pairs from the center of the RH lower middle cascade (5) to the top of the cascade. 1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. (c) Torque the bolts (1) in opposite pairs from the center of the RH lower middle cascade (5) to the bottom of the cascade.
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. (5) Install the RH lower cascade (6) on the torque box and the cascade ring. Use the nine bolts (1) and nine washers (2).
(6) Tighten the bolts (1) on the RH lower cascade (6).
(a) TORQUE the opposite pair of bolts (1) in the center of the RH lower cascade (6) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. NOTE: When you torque the opposite pairs of bolts (1), first torque the forward bolt (1) on the torque box. Then, torque the aft bolt on the cascade ring.
(b) Torque the bolts (1) in opposite pairs from the center of the RH lower cascade (6) to the top of the cascade. 1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. (c) Torque the bolts (1) in opposite pairs from the center of the RH lower cascade (6) to the bottom of the cascade.
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. (7) Install the RH upper cascade (3) on the torque box and the cascade ring. Use the eight bolts (1) and eight washers (2).
(8) Tighten the bolts (1) on the RH upper cascade (3).
(a) TORQUE the opposite pair of bolts (1) in the center of the RH upper cascade (3) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. NOTE: When you torque the opposite pairs of bolts (1), first torque the forward bolt (1) on the torque box. Then, torque the aft bolt on the cascade ring.
(b) Torque the bolts (1) in opposite pairs from the center of the RH upper cascade (3) to the top of the cascade. 1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. (c) Torque the bolts (1) in opposite pairs from the center of the RH upper cascade (3) to the bottom of the cascade.
1 TORQUE the bolts (1) to between 82.5 and 75 lbf.in (0.93 and 0.85 m.daN )
. Subtask 78-32-60-860-055-A ** ON A/C NOT FOR ALL Subtask 78-32-60-440-051-A ** ON A/C NOT FOR ALL
B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 78-32-60-410-051-A ** ON A/C NOT FOR ALL C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).