Installation of the Fan Air Valve

TASK 36-11-54-400-001-A
Installation of the Fan Air Valve

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.

ZONE: 471
ZONE: 481
FIN: 9HA1 ** ON A/C NOT FOR ALL
FIN: 9HA2 ** 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	MALLET - PLASTIC
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 70 and 50 lbf.in (0.79 and 0.57 m.daN )
No specific	Torque wrench: range to between 0.8 and 0.65 m.daN (70.80 and 57.52 lbf.in )
No specific	Torque wrench: range to between 1.63 and 1.52 m.daN (12.02 and 11.21 lbf.ft )
98L36103002000	1	TEST SET - ENGINE BLEED

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03PBB1)	Lubricant-Anti Seize High Temp. -
(Material No.03QBC1)	Dry lubricant-General Assembly Molybdenum Disulfide & Silicone -

C. Work Zones and Access Panels

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

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
20	PACKING	AIPC 36-11-54-01-020
21	PACKING	AIPC 36-11-54-01-020
13	UNION	AIPC 36-11-54-01-030

E. Referenced Information

REFERENCE	DESIGNATION
TASK 20-21-12-911-001-A	Tightening Torques for Pipe Unions (not for OXYGEN Unions)
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 36-11-00-710-001-A	Operational Test to read the CURRENT STATUS of the Engine Bleed Air System
TASK 49-00-00-860-006-A	APU Shutdown by External Power
TASK 49-00-00-860-006-A-01	APU Shutdown by Batteries
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 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-081-041-A	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-081-041-B	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-440-012-A	Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-30-00-481-041-A	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-30-00-481-041-B	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-32-00-010-010-A	Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A	Closing of the Thrust Reverser Halves
TASK 78-36-00-010-040-A	Opening of the Thrust Reverser Doors
TASK 78-36-00-010-040-B	Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-A	Closing of the Thrust Reverser Doors
TASK 78-36-00-410-040-B	Closing of the Thrust Reverser Doors
Fan Air Valve ** ON A/C NOT FOR ALL
Fan Air Valve ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 36-11-54-860-051-A ** ON A/C NOT FOR ALL

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) Make sure that engine 1(2) is shutdown for a minimum of five minutes before you do this procedure.
(3) In the cockpit, on AIR COND panel 30VU:

Make sure that ENG 1(2) BLEED pushbutton-switch is released (the OFF legend is on).
Make sure that the APU BLEED pushbutton-switch is released (the ON legend is off).
Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the pneumatic system.

(4) On ENG panel 115VU:

Make sure that the WARNING NOTICE(S) is in position to tell persons not to start engine 1(2).

(5) On the HP ground connector:

Make sure that the WARNING NOTICE(S) is in position to tell persons not to pressurize the pneumatic system.

(6) On the ENG section of maintenance panel 50VU:

Make sure that the ON legend of ENG/FADEC GND PWR 1(2) pushbutton-switch is off.
Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).

(7) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position below the engine.

Subtask 36-11-54-010-054-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 thrust reverser doors are open (Ref. AMM TASK 78-36-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 36-11-54-040-052-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 36-11-54-010-054-B ** ON A/C NOT FOR ALL

D. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the thrust reverser doors are open (Ref. AMM TASK 78-32-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 36-11-54-040-052-B ** ON A/C NOT FOR ALL

E. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated (Ref. AMM TASK 78-30-00-040-012).

Subtask 36-11-54-865-056-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR BLEED/ENG 1/CTL	3HA1	D12
49VU	AIR BLEED/ENG 1/MONG	2HA1	D11
122VU	AIR BLEED/ENG 2/CTL	3HA2	Z23
122VU	AIR BLEED/ENG 2/MONG	2HA2	Z22

4. Procedure
Subtask 36-11-54-420-053-J ** ON A/C NOT FOR ALL

A. Installation of the Fan Air Valve
(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 TASK 49-00-00-860-006)
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 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).

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

(3) Clean the component interfaces and the adjacent area.
(4) Do an inspection of the component interfaces and the adjacent area.
(5) Remove the CAP-BLANKING from each electrical connector and receptacle.
(6) Make sure that all the electrical connections are clean and in the correct condition.
(7) Remove the blanking plugs from the sense line ends, the valve (4) and the duct ends.
(8) Install the valve (4) on the pneumatic duct (2). To do this put the control mechanism in position at the front.

NOTE: The arrow which shows the direction of the flow of air points up.

(9) Make sure that the clamp (3) is clean and in the correct condition.
(10) Install the clamp (3).
(11) Make sure that the flanges are correctly aligned and with no unwanted stress.
(12) Move the clamp (3) around the flanges and install the tee bolt (18) in the trunnion (17). Do not tighten at this time.
(13) Turn the valve (4) to make sure that the sense line (14) and the electrical connector (1) are correctly connected.
(14) Make sure that the clamp (5) is clean and in the correct condition.
(15) Install the clamp (5).
(16) Install the elbow (10).
(17) Make sure that the flanges are correctly aligned and with no unwanted stress.
(18) Move the clamp (5) around the flanges and install the tee bolt (18) in the trunnion (17) Do not tighten at this time.
(19) Install the bolts (8) and (9) with the nuts (6) and (7) and tighten.
(20) Do the steps that follow to connect the venting line (12) and the sense line (14):
(a) Make sure that the venting line (12) and the sense line (14) and the unions (11) and (13) are serviceable.
1 Do the steps that follows if the union (13) is not serviceable:
a Remove the screw (22) from the union (13).
b Remove the union (13) and the packings (21) and (20) and discard them.
c Install a new AIPC 36-11-54-01-020 PACKING (20) on the valve (4).
d Put a new AIPC 36-11-54-01-030 UNION (13) in position on the valve (4).
e Install a new AIPC 36-11-54-01-020 PACKING (21) on the union (13).
f Install the screw (22).
g TORQUE the screw (22) to between 0.8 and 0.65 m.daN (70.80 and 57.52 lbf.in )

.
(b) Remove the blanking plugs from the unions (11) and (13).
(c) Clean the threads of the unions (11) and (13).

CAUTION: APPLY ONLY A THIN LAYER OF GREASE TO THE THREADS OF THE HOSE-ASSEMBLY COUPLING NUTS, AND REMOVE THE UNWANTED GREASE TO PREVENT CONTAMINATION OF THE HOSE ASSEMBLY. IF YOU USE TOO MUCH GREASE, IT CAN CAUSE CLOGGING OF THE HOSE ASSEMBLY OR DAMAGE TO THE RELATED COMPONENTS.

(d) Apply a thin layer of Dry lubricant-General Assembly Molybdenum Disulfide & Silicone - (Material No.03QBC1) or Lubricant-Anti Seize High Temp. - (Material No.03PBB1) to the threads of the unions (11) and (13).
(e) Remove the blanking plugs from the venting line (12) and the sense line (14).
(f) Connect the venting line (12) and the sense line (14) to the unions (11) and (13).
(21) Do the steps that follow to TORQUE the venting line (12) and the sense line (14) (Ref. AMM TASK 20-21-12-911-001):

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

(a) TORQUE the venting line (12) and the sense line (14) to between 1.63 and 1.52 m.daN (12.02 and 11.21 lbf.ft )

.
(22) On the clamps (3) and (5) torque the self-locking nuts (16) to 50 % of the final torque value.
(23) Make sure that the tee bolt (18) and the safety catch (19) are correctly installed.
(24) Use a MALLET - PLASTIC to lightly tap on and around the top surface of the clamps (3) and (5).
(25) TORQUE the clamps (3) and (5) to between 70 and 50 lbf.in (0.79 and 0.57 m.daN )

.
(26) Make sure that:

When locked, the safety catch (19) is fully over the stop of the clamp.
Make sure that non-threaded part of the tee bolt (18) engages in the trunnion (17) by more than four threads.
Make sure that the self-locking nut (16) is not fully tightened on the trunnion (17).
If there is one of the three conditions, discard the clamp.

(27) Paint a red mark of 0.08 x 0.3 in. (2 x 8 mm) approx. to the self-locking nut and the trunnion or the tee bolt.

NOTE: The paint shows that the clamps or the couplings were correctly torqued. If necessary, remove the mark which was there before.

(28) Connect the electrical connector (1).

Subtask 36-11-54-790-050-A ** ON A/C NOT FOR ALL

B. Leak Test
(1) Do the operational test to read the CURRENT STATUS of the engine bleed-air system (Ref. AMM TASK 36-11-00-710-001) and make sure that the BIT 13 of the LABEL 067 (066) is at 0.
(2) Remove the plug from the test port of the fan air valve.
(3) Connect the 98L36103002000 TEST SET - ENGINE BLEED or equivalent to the test port of the fan air valve.

NOTE: For the test of the engine bleed-air system, Airbus recommends to use bleed test set P/N 98L36103002000 for more accuracy.

(a) Supply a stable pressure of 20 psi (1.38 bar).
(b) Make sure that there are no leaks at the connections between the fan air valve and the sense line.

NOTE: On some fan air valves, the banjo union that connects the sense line to the fan air valve has a calibrated hole. For these valves, when the system is pressurized, air can come out through this hole. This is a normal operation of the equipment and not a leak.

(4) Disconnect the test set from the test port and install the plug on the test port.

5. Close-up
Subtask 36-11-54-865-057-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR BLEED/ENG 1/CTL	3HA1	D12
49VU	AIR BLEED/ENG 1/MONG	2HA1	D11
122VU	AIR BLEED/ENG 2/CTL	3HA2	Z23
122VU	AIR BLEED/ENG 2/MONG	2HA2	Z22

Subtask 36-11-54-410-050-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 thrust reverser doors (Ref. AMM TASK 78-36-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 36-11-54-440-050-A ** ON A/C NOT FOR ALL

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

Subtask 36-11-54-410-052-A ** ON A/C NOT FOR ALL

D. Close Access
(1) Close the fan cowl doors (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 access platform(s).
(3) Remove the WARNING NOTICE(S).

Subtask 36-11-54-410-050-B ** ON A/C NOT FOR ALL

E. 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 36-11-54-440-050-B ** ON A/C NOT FOR ALL

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

Subtask 36-11-54-410-052-B ** ON A/C NOT FOR ALL

G. Close Access
(1) 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
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).

Subtask 36-11-54-862-050-A ** ON A/C NOT FOR ALL

H. 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 01:13:34 UTC