W DOC AIRBUS | AMM A320F

Opening of the Thrust Reverser (T/R) Cowl Doors with Cowl Opening Actuator Missing [CFML]

TASK 78-36-00-040-811-A
Opening of the Thrust Reverser (T/R) Cowl Doors with Cowl Opening Actuator Missing

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: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 400
1. Reason for the Job
To open the thrust reverser half-doors when the thrust reverser cowl opening actuator is missing (under CDL 78-01).
Thrust Reverser Opening Actuator
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
HOIST 1000 KG (2200 LB)
No specific
AR
SHACKLE WORK LOAD LIMIT 1000 KG (2204LB)
No specific
1
SLING 1000 KG (2205 LBS)/2.5 M (8.25 FT) LONG
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 3 and 2 m.daN (22.12 and 14.75 lbf.ft ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CPNCL00667)
LUBRICATING COMPOUND (LIQUI-MOLY GRADE NV)
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 71-13-00-010-803-A
Opening of the Fan Cowl Doors
TASK 78-30-00-040-807-A
Deactivation of the Thrust Reverser System for Nacelle Maintenance (ICU)
TASK 78-36-00-010-806-A
Opening of the Thrust Reverser Cowl Doors
TASK 78-36-51-000-802-A
Removal of the Thrust Reverser Cowl Opening System
TASK 78-36-51-400-802-A
Installation of the Thrust Reverser Cowl Opening System
F Shackle, Hoist and Sling (PRE SB BD70CR78-009)
3. Job Set-up
Subtask 78-36-00-941-072-A
A. 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) Put the WARNING NOTICE(S) in position to tell persons not to operate:
  • The ENG/MODE selector switch
  • 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) Put the WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 78-36-00-010-127-A
B. Get Access
   (1) Open the fan cowl doors (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 78-36-00-040-084-A
C. Deactivation of the Thrust Reverser System 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) Do the deactivation of the thrust reverser system for nacelle maintenance (Ref. AMM TASK 78-30-00-040-807).
4. Procedure
Subtask 78-36-00-010-125-A
A. Opening of the Thrust Reverser Cowl-Doors with Cowl Opening Actuator Missing
WARNING: DO NOT DO MAINTENANCE IN THE CORE AREA WITHOUT THE THRUST REVERSER OPENING ACTUATOR AND THE HOLD OPEN ROD (HOR). THE ACTUATOR AND THE HOR MUST BE SAFETIED. IF YOU DO NOT OBEY THESE INSTRUCTIONS, INJURY TO PERSONNEL OR DAMAGE TO EQUIPMENT CAN OCCUR.
CAUTION: DO NOT OPEN THE THRUST REVERSER DOORS IF THE WIND SPEED IS MORE THAN 40 KNOTS.
CAUTION: DO NOT OPEN THE THRUST REVERSER TO MORE THAN 10 DEGREES WITH A STANDARD LIFTING RING.
   (1) Open the thrust reverser cowl latches (Ref. AMM TASK 78-36-00-010-806).

PRE SB BD70CR78-009

   (2) Opening of the thrust reverser cowl to approximately the ten-degree open position.
WARNING: MAKE SURE THAT:
  • THE THREADED LENGTH OF THE SHACKLE IS BETWEEN 19.05 MM (0.750 INCH) AND 24.10 MM (0.949 INCH)
  • THE MAXIMUM EXTERNAL DIAMETER OF THE SHACKLE IS 30.50 MM (1.201 INCH).
IF YOU DO NOT OBEY THIS INSTRUCTION, FAILURE OF THE SHACKLE CAN OCCUR. THIS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO THE EQUIPMENT.
CAUTION: MAKE SURE THAT YOU DO NOT CAUSE DAMAGE TO THE EXTERNAL SIDE OF THE THRUST REVERSER WITH THE SLING.
     (a) Installation of the SHACKLE WORK LOAD LIMIT 1000 KG (2204LB):
F Shackle, Hoist and Sling (PRE SB BD70CR78-009)
       1 Remove the filler plugs from the forward hoisting points (1) at the 6 o'clock area.
       2 Make sure that the hoisting point insert is clean and in good condition.
       3 Apply the CPNCL00667LUBRICATING COMPOUND (LIQUI-MOLY GRADE NV) on the threads of the SHACKLE WORK LOAD LIMIT 1000 KG (2204LB).
       4 Install the SHACKLE WORK LOAD LIMIT 1000 KG (2204LB) into the hoisting points (1).
       5 TORQUE the SHACKLE WORK LOAD LIMIT 1000 KG (2204LB) to between 3 and 2 m.daN (22.12 and 14.75 lbf.ft ) T.
       6 Attach the SLING 1000 KG (2205 LBS)/2.5 M (8.25 FT) LONG to the SHACKLE WORK LOAD LIMIT 1000 KG (2204LB) and to the HOIST 1000 KG (2200 LB).
       7 Lift the HOIST 1000 KG (2200 LB) until the sling holds the weight of the cowl.
NOTE: The sling attached to the SHACKLE WORK LOAD LIMIT 1000 KG (2204LB) must be in a vertical plane.
       8 Open the thrust reverser cowl to approximately the ten-degree open position.

END OF PRE SB BD70CR78-009

   (3) Installation of the thrust reverser cowl opening actuator on the thrust reverser cowl:
     (a) Remove the thrust reverser cowl opening actuator from the opposite thrust reverser half-door or from the other engine (Ref. AMM TASK 78-36-51-000-802).
     (b) Install the thrust reverser cowl opening actuator (Ref. AMM TASK 78-36-51-400-802).

PRE SB BD70CR78-009

   (4) Removal of the SHACKLE WORK LOAD LIMIT 1000 KG (2204LB):
F Shackle, Hoist and Sling (PRE SB BD70CR78-009)
     (a) Close the thrust reverser with the HOIST 1000 KG (2200 LB) until the sling does not hold the weight of the cowl.
     (b) Remove the SLING 1000 KG (2205 LBS)/2.5 M (8.25 FT) LONG from the SHACKLE WORK LOAD LIMIT 1000 KG (2204LB) and the HOIST 1000 KG (2200 LB).
     (c) Remove the SHACKLE WORK LOAD LIMIT 1000 KG (2204LB).
     (d) Install the filler plugs in the forward hoisting points (1) at the 6 o'clock area.

END OF PRE SB BD70CR78-009

   (5) Open the thrust reverser cowl door (Ref. AMM TASK 78-36-00-010-806).
[Rev.10 from 2021] 2026.04.01 03:36:46 UTC
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