W DOC AIRBUS | AMM A320F

Installation of the Left or Right Half Door of Thrust Reverser [CFMI]

TASK 78-32-11-400-040-A
Installation of the Left or Right Half Door of Thrust Reverser

CAUTION: IF YOU INSTALL A 642-38XX HALF DOOR ON AN AIRCRAFT WHERE THE OPPOSITE HALF DOOR IS A 238-11XX DOOR, MAKE SURE THAT THE SERVICE BULLETIN RA 32078-94 IS APPLIED. THE CENTER LATCH AND STIRRUP WILL NOT CONNECT. IF THE LATCH AND STIRRUP DO NOT CONNECT THE CENTER LATCH WILL NOT OPERATE CORRECTLY.
CAUTION: THIS PART IS A REMOVABLE STRUCTURAL COMPONENT (RSC), WHICH CAN BE MOVED BETWEEN AIRCRAFT. THUS IT CAN HAVE DIFFERENT OPERATION CONDITIONS AND A DIFFERENT LIFE RECORD (FLIGHT HOURS/FLIGHT CYCLES/CALENDAR) FROM THE AIRCRAFT IT IS INSTALLED ON OR REMOVED FROM. THE OPERATOR IS RESPONSIBLE FOR THE SPECIFIC TRACKING AND CONTINUED AIRWORTHINESS OF REMOVABLE STRUCTURAL COMPONENTS. INCORRECT MAINTENANCE OF THESE COMPONENTS CAN CAUSE A RISK FOR THE FLIGHT SAFETY.
ZONE: 400
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 1M(3 FT)
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 45 and 35 lbf.in (0.51 and 0.40 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CP2104)
molykote G rapid
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
30
COTTER PIN
AIPC 78-32-01-02-430
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 71-13-00-010-040-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A
Closing of the Fan Cowl Doors
TASK 71-13-00-800-040-A
Adjustment of the Fan Cowl Doors
TASK 71-13-11-000-040-A
Removal of the Fan Cowl Doors
TASK 71-13-11-400-040-A
Installation of the Fan Cowl Doors
TASK 78-30-00-081-041-A
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-A
Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-30-00-710-040-A
Thrust Reverser Hydraulic System Bleed Procedure
TASK 78-31-00-710-040-A-01
Operational Test of the Thrust Reverser without CFDS - Engine not Running
TASK 78-31-00-710-040-A-02
Operational Test of the Thrust Reverser without CFDS - Engine Running
TASK 78-31-00-710-040-A
Operational Test of the Thrust Reverser System
TASK 78-31-00-710-040-A-01
Operational Test of the Thrust Reverser without CFDS - Engine not Running
TASK 78-31-00-710-040-A-02
Operational Test of the Thrust Reverser without CFDS - Engine Running
TASK 78-36-00-410-040-A
Closing of the Thrust Reverser Doors
TASK 78-36-41-820-040-A
Adjustment of the Thrust Reverser Half Door Latches with a Torque Wrench
TASK 78-36-41-820-040-A-01
Adjustment of the Thrust Reverser Half Door Latches with a Push Gage
TASK 78-36-42-820-001-A
Adjustment of the LH or R/H Thrust Reverser "J" Ring on Wing
TASK 78-36-51-400-040-A
Installation of the Thrust Reverser Half Door Opening Actuator
F Handling Sling and Attachment Points on Reverser Half Door
F Attachment Points on Reverser Half Door
F Removal/Installation of Thrust Reverser Half Door on Mobile Workstand
F Opened and Closed Positions of Hold Open Rods
F Opened and closed Positions of Hold Open Rods
F Thrust Reverser Hinge Pins Access
F Thrust Reverser Electrical Harness
F Hydraulic Storage Caps
FOR [1000EM1] (ENGINE-1)
TASK 29-11-49-400-045-A
Installation of the Engine 1 Thrust-Reverser Hydraulic Supply Hoses
FOR [1000EM2] (ENGINE-2)
TASK 29-13-49-400-045-A
Installation of the Engine 2 Thrust-Reverser Hydraulic Supply Hoses
3. Job Set-up
Subtask 78-32-11-860-052-A ** ON A/C NOT FOR ALL
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).
   (3) Make sure that:
  • the slats and flaps are retracted,
  • the throttle control levers are at idle (0 degree).
   (4) On the slats and flaps control levers, make sure that a WARNING NOTICE(S) is in position not to use them.
   (5) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
Subtask 78-32-11-010-075-A ** ON A/C NOT FOR ALL
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 left or right fan cowl doors (Ref. AMM TASK 71-13-11-000-040) is removed.
Subtask 78-32-11-040-061-A ** ON A/C NOT FOR ALL
C. Make sure that the thrust reverser is unserviceable (Ref. AMM TASK 78-30-00-481-041).
Subtask 78-32-11-865-054-A ** ON A/C NOT FOR ALL
D. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUHYDRAULIC/HYD POWER/Y3803GXN30
123VUY HYD/ELEC/PUMP3802GXAB06
123VUY HYD/ELEC/ELEC PUMP/NORM3801GXAB03
4. Procedure
Subtask 78-32-11-080-052-A ** ON A/C NOT FOR ALL
A. Remove the Half Door from the Mobile Workstand (HIX-3001)
F Handling Sling and Attachment Points on Reverser Half Door ** ON A/C NOT FOR ALL
F Attachment Points on Reverser Half Door ** ON A/C NOT FOR ALL
F Removal/Installation of Thrust Reverser Half Door on Mobile Workstand ** ON A/C NOT FOR ALL
   (1) Remove the mobile workstand attachment strap from the middle lower fitting of the half door.
   (2) Install the handling sling (HIX-1001) on the half door.
F Handling Sling and Attachment Points on Reverser Half Door ** ON A/C NOT FOR ALL
F Attachment Points on Reverser Half Door ** ON A/C NOT FOR ALL
CAUTION: THE STOPS ON THE SCREWS MUST TOUCH THE 12 O'CLOCK BEAM. IF THE SCREWS ON THE LIFTING BEAM ARE NOT FULLY IN THE HOIST POINT, THE HALF DOOR COULD FALL. IF THE HALF DOOR FALLS IT CAN BE DAMAGED.
     (a) Remove and keep the hoist plugs from the two upper hoist points of the half door.
     (b) Install the handling sling on the two upper hoist points of the half door.
     (c) Install the lifting strap bracket to the lower hoist point on the middle lower fitting of the half door. Hook the other end of the lifting strap to the hook on the winch above.
   (3) Remove the cotter pins and hinge pins from the mobile workstand.
   (4) Remove the half door from the mobile workstand.
   (5) Install the hinge pins on the mobile workstand and attach with cotter pins.
Subtask 78-32-11-420-051-A ** ON A/C NOT FOR ALL
B. Install the Half Door on the Pylon
CAUTION: MAKE SURE THE BLOCKER DOORS ARE LOCKED TO PREVENT BLOCKER DOOR DAMAGE.
CAUTION: THE HALF DOOR WEIGHS APPROXIMATELY 440 POUNDS (200 KG). MAKE SURE THAT THE CRANE CAN LIFT 440 POUNDS (200 KG). HOWEVER, THE FORCE USED TO LIFT THE HALF DOOR SHOULD NOT BE MORE THAN 661 POUNDS (300 KG). IF THE LIFTING FORCE IS TOO MUCH THE SCREWS IN THE LIFTING BEAM CAN BREAK AND THE HALF DOOR WILL FALL AND BE DAMAGE.
   (1) Apply a thin layer of molykote G rapid (Material No.CP2104) on the hinge pins (15).
   (2) Put the half door to the 10 degree opening position.
   (3) Put thrust reverser in a position so that hinges are in line with the hinges of the pylon.
   (4) Install the hinge pins (15).
   (5) Install the washers (20) and the nuts (25).
   (6) Tighten the nut (25) without clearance.
NOTE: Nut can be untightened of 1/6 of turn maximum to put the bolt hole in line with a castle of the nut.
   (7) Install the new AIPC 78-32-01-02-430 COTTER PIN (30).
Subtask 78-32-11-080-053-A ** ON A/C NOT FOR ALL
C. Remove the Support Equipment
   (1) Disconnect the two shackles of the handling sling.
F Handling Sling and Attachment Points on Reverser Half Door ** ON A/C NOT FOR ALL
F Attachment Points on Reverser Half Door ** ON A/C NOT FOR ALL
   (2) Remove the handling sling from the two upper attachment points of the half door. Install the two hoist plugs.
   (3) Move the half door to 45 degree position with the handling sling.
Subtask 78-32-11-420-053-A ** ON A/C NOT FOR ALL
D. Install the Hold-open Rods and Actuators
WARNING: YOU MUST HOLD EACH HALF DOOR OPENED WITH THE HOLD-OPEN ROD TO PREVENT SERIOUS INJURY DUE TO ACCIDENTAL CLOSURE.
   (1) Install the hold-open rods.
F Opened and Closed Positions of Hold Open Rods ** ON A/C NOT FOR ALL
F Opened and closed Positions of Hold Open Rods ** ON A/C NOT FOR ALL
     (a) Remove the quick release pin retaining the hold open rod on the lower bracket.
     (b) Move the hold-open rod to the attachment bracket of the forward frame.
     (c) Attach the hold open rod with the quick-release pin.
   (2) Install the left and/or right door-opening actuators from pylon only (Ref. AMM TASK 78-36-51-400-040).
Subtask 78-32-11-410-060-A ** ON A/C NOT FOR ALL
E. Close the left and right thrust reverser half doors (Ref. AMM TASK 78-36-00-410-040).
Subtask 78-32-11-080-054-A ** ON A/C NOT FOR ALL
F. Remove the Support Equipment
   (1) Remove the lifting strap bracket and lifting strap of the handling sling (HIX-1001) from the middle lower fitting.
F Attachment Points on Reverser Half Door ** ON A/C NOT FOR ALL
F Handling Sling and Attachment Points on Reverser Half Door ** ON A/C NOT FOR ALL
   (2) Install the hoist plug on the middle lower fitting.
F Handling Sling and Attachment Points on Reverser Half Door ** ON A/C NOT FOR ALL
Subtask 78-32-11-410-061-A ** ON A/C NOT FOR ALL
G. Install the Hinge Access Panel
   (1) Install the hinge access panel (5) and attach with the 13 screws (10).
F Thrust Reverser Hinge Pins Access ** ON A/C NOT FOR ALL
   (2) TORQUE the screws (10) to between 45 and 35 lbf.in (0.51 and 0.40 m.daN ) T.
Subtask 78-32-11-420-054-A ** ON A/C NOT FOR ALL
H. Connect the Electrical and Hydraulic Connections
   (1) Remove the blanking caps from the electrical connectors.
   (2) Connect the right electrical harness on the left electrical junction box.
F Thrust Reverser Electrical Harness ** ON A/C NOT FOR ALL
   (3) Connect the pylon electrical harness on the junction box or on the hydraulic control unit.
   (4) Remove the blanking caps from the nipples.
F Hydraulic Storage Caps ** ON A/C NOT FOR ALL
   (5) Connect the left or right interface hydraulic hoses.
     (a) FOR [1000EM1] (ENGINE-1)
(Ref. AMM TASK 29-11-49-400-045).
     (b) FOR [1000EM2] (ENGINE-2)
(Ref. AMM TASK 29-13-49-400-045).
Subtask 78-32-11-820-054-A ** ON A/C NOT FOR ALL
I. Adjust thrust reverser "J" ring (Ref. AMM TASK 78-36-42-820-001).
Subtask 78-32-11-820-052-A ** ON A/C NOT FOR ALL
J. Adjust thrust reverser door latches (Ref. AMM TASK 78-36-41-820-040).
Subtask 78-32-11-410-062-A ** ON A/C NOT FOR ALL
K. Install left or right fan cowl door (Ref. AMM TASK 71-13-11-400-040).
Subtask 78-32-11-440-054-A ** ON A/C NOT FOR ALL
L. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).
Subtask 78-32-11-942-051-A ** ON A/C NOT FOR ALL
M. Close Access
   (1) Remove the access platform(s).
   (2) Remove the WARNING NOTICE(S).
Subtask 78-32-11-869-055-A ** ON A/C NOT FOR ALL
N. Make sure that the work area is clean and clear of tools and other items.
Subtask 78-32-11-865-055-A ** ON A/C NOT FOR ALL
O. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUHYDRAULIC/HYD POWER/Y3803GXN30
123VUY HYD/ELEC/PUMP3802GXAB06
123VUY HYD/ELEC/ELEC PUMP/NORM3801GXAB03
Subtask 78-32-11-710-052-A ** ON A/C NOT FOR ALL
P. Do a check of the hydraulic connections:
   (1) Bleed the air from the thrust reverser hydraulic system (Ref. AMM TASK 78-30-00-710-040).
   (2) Do a check of the hydraulic connections for leakage.
5. Close-up
Subtask 78-32-11-410-063-A ** ON A/C NOT FOR ALL
A. Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
   (1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
   (2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 78-32-11-820-053-A ** ON A/C NOT FOR ALL
B. Do the adjustment/test of the fan cowl doors (Ref. AMM TASK 71-13-00-800-040).
Subtask 78-32-11-710-053-A ** ON A/C NOT FOR ALL
C. Do an operational test of the thrust reverser system (Ref. AMM TASK 78-31-00-710-040). Perform 10 deploy-to-stow cycles to air bleed the thrust reverser hydraulic circuit.
NOTE: As an alternative procedure you can do this operational test without the CFDS:
[Rev.10 from 2021] 2026.04.01 03:22:28 UTC
"Aviabrain" 2025