Installation of the Thrust Reverser Half Door Stirrups [CFMB]

TASK 78-36-41-400-044-A
Installation of the Thrust Reverser Half Door Stirrups

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	WARNING NOTICE(S)

B. Work Zones and Access Panels

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

C. Referenced Information

REFERENCE	DESIGNATION
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 78-36-41-820-042-A	Adjustment of the Thrust Reverser Half Door Latches
Half Door Stirrups and Centering Pins

3. Job Set-up
Subtask 78-36-41-860-051-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).

Subtask 78-36-41-010-061-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 thrust reverser door is open: (Ref. AMM TASK 78-36-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
451AL
(b) FOR [1000EM2] (ENGINE-2)
461AL

Subtask 78-36-41-040-057-A ** ON A/C NOT FOR ALL

C. Make sure that the thrust reverser is unserviceable (Ref. AMM TASK 78-30-00-481-041).

4. Procedure
Subtask 78-36-41-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the Thrust Reverser Half Door Stirrups:
(1) Installation of the Aft Half Door Stirrup
(a) Put the stirrup (30) in position and install the tension nut (20). Tighten the nuts with your hand.

NOTE: Do not torque the nut at this time. The nut will be torqued during the adjustment procedures for the thrust reverser half door latches.

(b) Put the locking bracket (10) over the tension nut (20) and loosely install the screw (15).
(2) Installation of the Middle Half Door Stirrup
(a) Put the stirrup (30) in position and install the tension nut (20). Tighten the nut with your hand.

NOTE: Do not torque the nut at this time. The nut will be torqued during the adjustment procedures for the thrust reverser half door latches.

(b) Put the locking bracket (10) over the tension nut (20) and loosely install the screw (15).
(3) Installation of the Forward Half Door Stirrups
(a) Put the stirrups (30) in position and install the tension nuts (20). Tighten the nuts with your hand.

NOTE: Do not torque the nuts at this time. The nuts will be torqued during the adjustment procedures for the thrust reverser half door latches.

(b) Put the locking brackets (10) over the tension nuts (20) and loosely install the screws (15).

Subtask 78-36-41-410-052-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the left thrust reverser half door (Ref. AMM TASK 78-36-00-410-040).
(a) FOR [1000EM1] (ENGINE-1)
451AL
(b) FOR [1000EM2] (ENGINE-2)
461AL

Subtask 78-36-41-820-050-A ** ON A/C NOT FOR ALL

C. Adjust the thrust reverser half door latches (Ref. AMM TASK 78-36-41-820-042).

5. Close-up
Subtask 78-36-41-440-051-A ** ON A/C NOT FOR ALL

A. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).

Subtask 78-36-41-410-053-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Close the fan cowls: (Ref. AMM TASK 71-13-00-410-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 13:12:03 UTC