Installation of the Fan Air-Valve Actuator

TASK 36-11-54-400-804-A
Installation of the Fan Air-Valve Actuator

WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.

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: YOU MUST NOT TOUCH HOT PARTS WITHOUT APPLICABLE GLOVES. HOT PARTS CAN CAUSE AN INJURY.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 415
ZONE: 425
FIN: 9HA1
FIN: 9HA2

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 0.38 and 0.31 m.daN (33.63 and 27.43 lbf.in )
No specific	Torque wrench: range to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )
No specific	Torque wrench: range to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
415	LOWER PYLON
425	LOWER PYLON
191DB
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR, 462AR
FOR [9HA1] (VALVE-FAN AIR, ENG1)
415AR
FOR [9HA2] (VALVE-FAN AIR, ENG2)
425AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 20-23-22-910-001-A	Marking of the Unions after Application of Standard or Specific Tightening Torque
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 36-11-00-740-804-A	BITE Test of the Engine Bleed Air System (EBAS) (System Test)
TASK 49-00-00-860-009-A	APU Shutdown by External Power (131-9(A))
TASK 49-00-00-860-009-A-01	APU Shutdown by Batteries (131-9(A))
TASK 54-51-21-000-804-A	Removal of the Pylon Lateral Access-Doors
TASK 54-51-21-400-803-A	Installation of the Pylon Lateral Access-Doors
TASK 71-13-00-010-803-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A	Closing of the Fan Cowl Doors
TASK 78-30-00-040-807-A	Deactivation of the Thrust Reverser System for Nacelle Maintenance (ICU)
TASK 78-30-00-440-807-A	Reactivation of the Thrust Reverser System after Nacelle Maintenance (ICU)
TASK 78-36-00-010-806-A	Opening of the Thrust Reverser Cowl Doors
TASK 78-36-00-410-806-A	Closing of the Thrust Reverser Cowl Doors
Fan Air-Valve Actuator

3. Job Set-up
Subtask 36-11-54-860-056-A

A. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002) or (Ref. AMM TASK 24-41-00-861-002).
(2) In the cockpit, on AIR COND panel 30VU:
(a) Make sure that the ENG 1(2) BLEED pushbutton-switch is released (OFF legend on).
(b) Make sure that the APU BLEED pushbutton-switch is released (ON legend off).
(c) Make sure that the WARNING NOTICE(S) is in the position to tell persons not to operate the pneumatic system.
(3) 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 for a minimum of 5 minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) are in the position to tell persons not to operate:

The ENG/MODE selector switch and
The ENG/MASTER 1(2) control switch.

(4) 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) Make sure that the WARNING NOTICE(S) is in the position to tell persons not to energize FADEC 1(2).
(5) On access door 191DB, on the HP ground connector:
(a) Make sure that the WARNING NOTICE(S) is in the position to tell persons not to pressurize the pneumatic system.

Subtask 36-11-54-865-076-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	AIR BLEED/ENG 2/MONG	3HA2	D12
49VU	AIR BLEED/ENG 1/CTL	2HA1	D11
122VU	AIR BLEED/ENG 1/MONG	3HA1	Z23
122VU	AIR BLEED/ENG 2/CTL	2HA2	Z22

Subtask 36-11-54-010-081-A

C. Get Access
(1) Make sure that the fan cowl doors are open (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
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.
(3) Make sure that the right thrust-reverser cowl-door is open (Ref. AMM TASK 78-36-00-010-806)
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
462AR
(4) Make sure that the access door is removed (Ref. AMM TASK 54-51-21-000-804):
(a) FOR [9HA1] (VALVE-FAN AIR, ENG1)
415AR
(b) FOR [9HA2] (VALVE-FAN AIR, ENG2)
425AR

Subtask 36-11-54-040-067-A

D. Make sure that you did the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-807)

4. Procedure

CAUTION: USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT THE PNEUMATIC LINES ON UNIONS.

Subtask 36-11-54-420-064-A

A. Installation of the Fan Air-Valve Actuator
(1) If you use the APU to energize the electrical circuits, stop the APU:

For GTCP 36-300 APU (Ref. AMM D/O 49-00-00-86)
For APS 3200 APU (Ref. AMM D/O 49-00-00-86)
For 131-9(A) APU (Ref. AMM TASK 49-00-00-860-009).

(2) In the cockpit, on the SD bleed page:
(a) Make sure that the pressure and the temperature of the bleed-air duct system are in the ambient conditions.

WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.

WARNING: DO NOT TOUCH THE UNIT UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).

(3) Do an inspection of the component interfaces and the adjacent area.
(4) Clean the component interfaces and the adjacent area.
(5) Make sure that the access door supports (1) are removed.
(6) Use the three locator pins (13) to put the actuator (8) in its position in the support bracket (5).
(7) Close the clamps (6) and then tighten the nut (7).
(8) TORQUE the nut (7) to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )

.
(9) Identify the tightened union nut (7) with a red line (Ref. AMM TASK 20-23-22-910-001).
(10) Put the rod (4) in its position on the actuator (8) and then install the screw (10).
(11) TORQUE the screw (10) to between 0.38 and 0.31 m.daN (33.63 and 27.43 lbf.in )

.
(12) Remove the blanking plugs from the disconnected line ends.
(13) Connect the sense line (9) to the actuator (8).
(14) TORQUE the nut of the sense line (9) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )

.
(15) Identify the tightened union nut of the sense line (9) with a red line (Ref. AMM TASK 20-23-22-910-001).
(16) Remove the CAP-BLANKING from each electrical connector and receptacle.
(17) Make sure that all the electrical connections are clean and in the correct condition.
(18) Connect the electrical connector (12) to the electrical connector receptacle (11).

Subtask 36-11-54-865-077-A

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	AIR BLEED/ENG 2/MONG	3HA2	D12
49VU	AIR BLEED/ENG 1/CTL	2HA1	D11
122VU	AIR BLEED/ENG 1/MONG	3HA1	Z23
122VU	AIR BLEED/ENG 2/CTL	2HA2	Z22

Subtask 36-11-54-740-051-A

C. Do the BITE test of the Engine Bleed-Air-System Application (Ref. AMM TASK 36-11-00-740-804).

5. Close-up
Subtask 36-11-54-410-075-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the two access door supports (1).
(a) Put the two access door supports in position on the structure (3).
(b) Install the screws (2) and tighten them.
(3) Install the related access door (Ref. AMM TASK 54-51-21-400-803):
(a) FOR [9HA1] (VALVE-FAN AIR, ENG1)
415AR
(b) FOR [9HA2] (VALVE-FAN AIR, ENG2)
425AR
(4) Close the right thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-410-806).
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
462AR

Subtask 36-11-54-440-062-A

B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-807).

Subtask 36-11-54-410-076-A

C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

Subtask 36-11-54-862-062-A

D. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002) or (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 01:13:44 UTC