DOC AIRBUS | AMM A320FVisual Inspection of the Thrust Reverser Half Door Opening Actuator [CFMB]
TASK 78-36-51-210-041-A
Visual Inspection of the Thrust Reverser Half Door Opening Actuator
1. Reason for the Job
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 78-36-51-941-051-A ** ON A/C NOT FOR ALL
Subtask 78-36-51-210-050-A ** ON A/C NOT FOR ALL
Subtask 78-36-51-410-052-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:26:46 UTC
Visual Inspection of the Thrust Reverser Half Door Opening Actuator
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) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-80-00-866-005-A | Retracting the Slats on the Ground |
| TASK 71-13-00-010-040-B | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-040-B | Closing of the Fan Cowl Doors |
| TASK 78-30-00-081-041-B | Make the Thrust Reverser Serviceable after Maintenance |
| TASK 78-30-00-481-041-B | Make the Thrust Reverser Unserviceable for Maintenance |
| TASK 78-36-00-010-040-B | Opening of the Thrust Reverser Doors |
| TASK 78-36-00-410-040-B | Closing of the Thrust Reverser Doors |
| TASK 78-36-51-000-041-A | Removal of the Thrust Reverser Half Door Opening Actuator |
| TASK 78-36-51-400-041-A | Installation of the Thrust Reverser Half Door Opening Actuator |
| AIPC 78-36-51- | |
Thrust Reverser Half Door Opening ActuatorSubtask 78-36-51-941-051-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
Subtask 78-36-51-010-052-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
B. Close Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.
Subtask 78-36-51-040-051-A ** ON A/C NOT FOR ALL Subtask 78-36-51-869-052-A ** ON A/C NOT FOR ALL (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.
D. Retract the Wing Slats
Subtask 78-36-51-010-053-A ** ON A/C NOT FOR ALL CAUTION:
RETRACT WING SLATS BEFORE OPENING THRUST REVERSER OR DAMAGE CAN OCCUR.
(1) Retract the slats (Ref. AMM TASK 27-80-00-866-005) and install a WARNING NOTICE(S). E. Open the thrust reverser doors to 45 degree position (Ref. AMM TASK 78-36-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 78-36-51-210-050-A ** ON A/C NOT FOR ALL
A. Do a Visual Inspection of the Thrust Reverser Half Door Opening Actuator and Hydraulic Hose
5. Close-up| INSPECT/CHECK | MAXIMUM SERVICEABLE LIMITS | REMARKS |
|---|---|---|
| 1.Inspect the half door opening actuator for: | | |
| A.Damage | No damage permitted | If you find some damage, replace the door opening actuator (Ref. AMM TASK 78-36-51-000-041) and (Ref. AMM TASK 78-36-51-400-041) |
| B.Crack | No crack permitted | If there is a crack, replace the door opening actuator (Ref. AMM TASK 78-36-51-000-041) and (Ref. AMM TASK 78-36-51-400-041) |
| C.Hydraulic leakage | The Dynamic rate of 4 drops per 25 actuation cyles is allowed. The static rate of 4 drops in 8 hours is allowed. | If the leakage comes from the nipple, check the nipple for correct torque (Ref. AMM TASK 78-36-51-400-041). If the leakage is beyond the permitted limits, replace the door-opening actuator (Ref. AMM TASK 78-36-51-000-041) and (Ref. AMM TASK 78-36-51-400-041) |
| | | If the leakage comes from the body of the actuator, replace the door opening actuator (Ref. AMM TASK 78-36-51-000-041) and (Ref. AMM TASK 78-36-51-400-041) |
| 2.Inspect the related hardware of the door opening actuator for: | | |
| A.Damage | No damage permitted | If you find some damage, replace the damaged part (Ref. AMM TASK 78-36-51-000-041) and (Ref. AMM TASK 78-36-51-400-041) |
| 3.Inspect rod end pin for correct installation: | Make sure the rod end pin head is on the top of the actuator. Make sure the washer and circlip are on the bottom and tight. | If pin head is on the bottom and washer is on the top, reinstall actuator. If washer and circlip are found missing or loose, replace the actuator. (Ref. AMM TASK 78-36-51-000-041) and (Ref. AMM TASK 78-36-51-400-041) |
| 4.Inspect the hydraulic hose for: | | |
| A.Damage | No damage permitted | If you find some damage, replace the hydraulic hose (Ref. AMM TASK 78-36-51-000-041) and (Ref. AMM TASK 78-36-51-400-041) |
| B.Hydraulic leakage | No hydraulic leakage permitted | If there is leakage, check coupling nuts for correct torque (Ref. AMM TASK 78-36-51-400-041). |
| | | If the leakage continues, replace the hydraulic hose (Ref. AMM TASK 78-36-51-000-041) and (Ref. AMM TASK 78-36-51-400-041) |
| 5.Examine the door opening actuator cooling jackets, look for: | | |
| A.Blocked Drain | Not allowed | If the drain holes are blocked, remove blockage before next flight. |
| B.Cracks or Dents | None allowed | If crack or dents are found replace the cooling jacket (Ref. AMM TASK 78-36-51-000-041) (Ref. AMM TASK 78-36-51-400-041). |
| 6.Examine the door opening actuator flexible cooling hoses, look for: | | |
| A.Wear or Cuts | Wear or cuts are allowed if they are not fully through the hose | If the wear of cut is fully thru the hose then replace the hose (Ref. AMM TASK 78-36-51-000-041) (Ref. AMM TASK 78-36-51-400-041). |
| B.Holes | None allowed | If a hole is found then replace the cooling hose (Ref. AMM TASK 78-36-51-000-041) (Ref. AMM TASK 78-36-51-400-041). |
| 7.Examine the clamps and the parts that attach the clamps, look for: | | |
| A.Missing clamp or attaching part | None allowed | If a clamp or nut is missing replace it AIPC 78-36-51- (Ref. AMM TASK 78-36-51-400-041). |
Subtask 78-36-51-410-052-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser cowl doors (Ref. AMM TASK 78-36-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
(3) Remove the access platform(s).
Subtask 78-36-51-440-051-A ** ON A/C NOT FOR ALL Subtask 78-36-51-410-053-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 thrust reverser cowl doors (Ref. AMM TASK 78-36-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
(3) Remove the access platform(s).