Reactivation of the Thrust Reverser Opening Actuator [IAE]

TASK 78-36-00-440-804-A
Reactivation of the Thrust Reverser Opening Actuator

WARNING: DO NOT LET ENGINE OIL STAY ON YOUR SKIN FOR A LONG TIME. FLUSH THE OIL FROM YOUR SKIN WITH WATER. THE OIL IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY.

CAUTION: DO NOT LET ENGINE FUEL OR OIL FALL ON THE ENGINE. UNWANTED FUEL OR OIL MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH. THE FUEL OR OIL CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.

1. Reason for the Job
Self 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	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )
No specific	Torque wrench: range to between 120 and 100 lbf.in (1.36 and 1.13 m.daN )

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-440-012-A	Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-32-00-010-802-A	Opening of the Thrust Reverser Halves (Alternate Procedure)
TASK 78-32-00-410-010-A	Closing of the Thrust Reverser Halves
TASK 78-36-51-000-010-A	Removal of the Thrust Reverser Opening Actuator
TASK 78-36-51-400-010-A	Installation of the Thrust Reverser Opening Actuator
Thrust Reverser Opening Actuator

3. Job Set-up
Subtask 78-36-00-941-067-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Put a WARNING NOTICE(S) in position to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than five 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) in position to tell persons not to energize FADEC 1(2).

Subtask 78-36-00-010-106-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.

Subtask 78-36-00-040-079-A ** ON A/C NOT FOR ALL

C. Deactivation of the Thrust Reverser

WARNING: MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Deactivate the thrust-reverser Hydraulic Control Unit (HCU) for ground maintenance (Ref. AMM TASK 78-30-00-040-012).

Subtask 78-36-00-010-107-A ** ON A/C NOT FOR ALL

D. Open the thrust reverser halves (Ref. AMM TASK 78-32-00-010-802):
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR

4. Procedure
Subtask 78-36-00-020-059-A ** ON A/C NOT FOR ALL

A. Disconnection of the Hydraulic Hose from the Thrust-Reverser Opening Actuator
(1) Remove the nut (9), screw (6), washer (8) and clamp (7) that attach the flexible hose cover (11) to the thrust-reverser opening actuator (5).
(2) Open the end cover to get access to the hose nut (10).
(3) Disconnect the hydraulic hose (12) from the opening actuator (5).

Subtask 78-36-00-020-060-A ** ON A/C NOT FOR ALL

B. Remove the thrust-reverser opening actuator (Ref. AMM TASK 78-36-51-000-010).

Subtask 78-36-00-612-050-A ** ON A/C NOT FOR ALL

C. Fill the actuator with oil (Ref. AMM TASK 78-36-51-400-010).

Subtask 78-36-00-420-053-A ** ON A/C NOT FOR ALL

D. Install the thrust-reverser opening actuator (Ref. AMM TASK 78-36-51-400-010).

Subtask 78-36-00-420-054-A ** ON A/C NOT FOR ALL

E. Connection of the Hydraulic Hose to the Thrust-Reverser Opening Actuator
(1) Connect the hose nut (10) to the thrust-reverser opening actuator (5).
(2) TORQUE the hose nut (10) to between 120 and 100 lbf.in (1.36 and 1.13 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

Subtask 78-36-00-420-055-A ** ON A/C NOT FOR ALL

F. Installation of the Flexible Hose Cover
(1) Put the flexible hose cover (11) over the thrust-reverser opening actuator (5).
(2) Install the clamp (7), the screw (6), the washer (8) and the nut (9) that attach the flexible hose cover to the actuator.
(3) TORQUE the nut (9) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

5. Close-up
Subtask 78-36-00-410-094-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 halves (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 78-36-00-440-070-A ** ON A/C NOT FOR ALL

B. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).

Subtask 78-36-00-410-095-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 03:29:58 UTC