Functional Test of the HP Bleed Valve with the Bleed Test Set P/N 99127B03

TASK 36-11-51-720-001-A-02
Functional Test of the HP Bleed Valve with the Bleed Test Set P/N 99127B03

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.

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
FIN: 4000HA ** ON A/C NOT FOR ALL

1. Reason for the Job
To make sure that the HP bleed valve opens correctly with the Bleed Test Set P/N 99127B03.

NOTE: You can use bleed test set P/N 99127B04 as an alternative of bleed test set P/N 99127B03.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	1	SUPPLY - 28 VDC, ELECTRICAL
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in )
99127-231	1	TEST SET BLEED - KIT
99127B03	1	BLEED TEST SET

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
191MB
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL

D. Referenced Information

REFERENCE	DESIGNATION
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 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
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 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
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
Functional Test of the HP Bleed Valve with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
Functional Test of the HP Bleed Valve with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
Functional Test of the HP Bleed Valve with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL
Functional Test of the HP Bleed Valve with the Bleed Test Set P/N 99127B03 ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 36-11-51-861-061-A ** ON A/C NOT FOR ALL

A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 36-11-51-941-063-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(2) On the AIR COND panel 30VU:

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

(3) On the ENG panel 115VU:

Put a WARNING NOTICE(S) in position to tell persons not to start the engine 1(2).

(4) On the HP ground connector:

Put a WARNING NOTICE(S) in position to tell persons not to pressurize the pneumatic system.

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

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

Subtask 36-11-51-010-074-A ** ON A/C NOT FOR ALL

C. Get 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) Open the access door 191MB.
(3) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below the applicable engine.

Subtask 36-11-51-040-066-A ** ON A/C NOT FOR ALL

D. Deactivation of the Thrust Reverser

WARNING: MAKE SURE THAT THE THRUST REVERSER IS LOCKED. IF NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO THE REVERSER.

(1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-481-041).

Subtask 36-11-51-010-075-A ** ON A/C NOT FOR ALL

E. Open the left thrust-reverser door (Ref. AMM TASK 78-36-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
451AL
(2) FOR [1000EM2] (ENGINE-2)
461AL.

Subtask 36-11-51-010-074-B ** ON A/C NOT FOR ALL

F. 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) Open the access door 191MB.
(3) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below the applicable engine.

Subtask 36-11-51-040-066-B ** ON A/C NOT FOR ALL

G. 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) Do the deactivation of the thrust-reverser Hydraulic Control Unit (HCU) (Ref. AMM TASK 78-30-00-040-012).

Subtask 36-11-51-010-075-B ** ON A/C NOT FOR ALL

H. Open the left thrust-reverser half (Ref. AMM TASK 78-32-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
451AL
(2) FOR [1000EM2] (ENGINE-2)
461AL.

Subtask 36-11-51-010-074-C ** ON A/C NOT FOR ALL

I. Get 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) Open the access door 191MB.
(3) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below the applicable engine.

Subtask 36-11-51-040-066-C ** ON A/C NOT FOR ALL

J. Deactivation of the Thrust Reverser

WARNING: MAKE SURE THAT THE THRUST REVERSER IS LOCKED. IF NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO THE REVERSER.

(1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-481-041).

Subtask 36-11-51-010-075-C ** ON A/C NOT FOR ALL

K. Open the left thrust-reverser door (Ref. AMM TASK 78-36-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
451AL
(2) FOR [1000EM2] (ENGINE-2)
461AL.

4. Procedure
Subtask 36-11-51-480-056-B ** ON A/C NOT FOR ALL

A. Installation of the Tool
(1) Connect the 99127B03 BLEED TEST SET as shown in the figure and do the steps that follow:
(a) Use the 99127-231 TEST SET BLEED - KIT on the wing to do this test.
(b) Set the pressure gage (5) to ON. The pressure value given on the LCD screen must be equal to 0 psi. If it is not equal to 0 psi, push the ON button for 10 seconds.
(2) Connect the hose (T04) to the bleed-test set pressure-supply (9).
(3) Connect the hose (T05) to the bleed-test set pressure-reading (14).
(4) Connect the hoses (T04) and (T05) to "Y" adaptor (T06).
(5) Connect "Y" adaptor (T06) to the test port adaptor (T14).
(6) Connect 28VDC electrical cord (T03) between the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and an external SUPPLY - 28 VDC, ELECTRICAL:

Start the SUPPLY - 28 VDC, ELECTRICAL.

WARNING: USE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(7) Cut and discard the lockwire.
(8) Remove the blanking plug from the test port of the HP bleed valve.
(9) Install the test port adaptor (T14) on the test port of the HP bleed valve.
(10) Open the pressure-source shut-off valve to slowly pressurize the 99127B03 BLEED TEST SET to 100 psi (6.89 bar).

Subtask 36-11-51-480-056-C ** ON A/C NOT FOR ALL

A. Installation of the Tool
(1) Connect the 99127B03 BLEED TEST SET as shown in the figure and do the steps that follow:
(a) Use the 99127-231 TEST SET BLEED - KIT on the wing to do this test.
(b) Set the pressure gage (5) to ON. The pressure value given on the LCD screen must be equal to 0 psi. If it is not equal to 0 psi, push the ON button for 10 seconds.
(2) Connect the hose (T04) to the bleed-test set pressure-supply (9).
(3) Connect the hose (T05) to the bleed-test set pressure-reading (14).
(4) Connect the hoses (T04) and (T05) to "Y" adaptor (T06).
(5) Connect "Y" adaptor (T06) to the test port adaptor (T14) or (T25).
(6) Connect 28VDC electrical cord (T03) between the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and an external SUPPLY - 28 VDC, ELECTRICAL:

Start the SUPPLY - 28 VDC, ELECTRICAL.

(7) Cut and discard the lockwire.
(8) Remove the blanking plug from the test port of the HP bleed valve.
(9) Install the test port adaptor (T14) or (T25) on the test port of the HP bleed valve.
(10) Open the pressure-source shut-off valve to slowly pressurize the 99127B03 BLEED TEST SET to 100 psi (6.89 bar).

Subtask 36-11-51-720-058-A ** ON A/C NOT FOR ALL

B. Functional Test of the HP Bleed Valve
(1) Do the test that follows:

ACTION	RESULT
1.On the test set: Set the Blue valve (7) to ON.
2.On the test set: With the pressure gauge A (3), increase the pressure to 29 +/- 1 psi (2 +/- 0.07 bar). NOTE: The pressure value given in this test is applicable to all the types of valves. But the opening pressure can change with the reference of the valve.	On the test set: The pressure is given on the LCD (5).
	On the HP bleed valve: The visual position indicator shows that the valve is open.
3.In the cockpit, on the AIR COND panel 30VU: Release the related ENG BLEED pushbutton switch (the OFF legend comes on).	On the HP bleed valve: The visual position indicator shows that the valve is closed.
4.In the cockpit, on the AIR COND panel 30VU: Push the related ENG BLEED pushbutton switch (the OFF legend goes off).	On the HP bleed valve: The visual position indicator shows that the valve is open.
5.On the test set: With the pressure gauge A (3), decrease the pressure to 0 psi.	On the HP bleed valve: The visual position indicator shows that the valve is closed.
6.In the cockpit, on the AIR COND panel 30VU: Release the related ENG BLEED pushbutton switch (the OFF legend comes on).

Subtask 36-11-51-080-056-B ** ON A/C NOT FOR ALL

C. Removal of the Tool
(1) Stop the SUPPLY - 28 VDC, ELECTRICAL.
(2) Disconnect 28VDC electrical cord (T03) from the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and the external SUPPLY - 28 VDC, ELECTRICAL.
(3) Remove the test port adaptor (T14) from the test port of the HP bleed valve.
(4) Disconnect "Y" adaptor (T06) from the test port adaptor (T14).
(5) Disconnect the hoses (T04) and (T05) from "Y" adaptor (T06).
(6) Disconnect the hose (T05) from the bleed-test set pressure-reading (14).
(7) Disconnect the hose (T04) from the bleed-test set pressure-supply (9).
(8) Install the blanking plug on the test port of the HP bleed valve.
(9) TORQUE the blanking plug to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in )

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(10) Safety the blanking plug with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

Subtask 36-11-51-080-056-C ** ON A/C NOT FOR ALL

C. Removal of the Tool
(1) Stop the SUPPLY - 28 VDC, ELECTRICAL.
(2) Disconnect 28VDC electrical cord (T03) from the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and the external SUPPLY - 28 VDC, ELECTRICAL.
(3) Remove the test port adaptor (T14) or (T25) from the test port of the HP bleed valve.
(4) Disconnect "Y" adaptor (T06) from the test port adaptor (T14) or (T25).
(5) Disconnect the hoses (T04) and (T05) from "Y" adaptor (T06).
(6) Disconnect the hose (T05) from the bleed-test set pressure-reading (14).
(7) Disconnect the hose (T04) from the bleed-test set pressure-supply (9).
(8) Install the blanking plug on the test port of the HP bleed valve.
(9) TORQUE the blanking plug to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in )

(10) Safety the blanking plug with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

5. Close-up
Subtask 36-11-51-410-071-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 left thrust-reverser door (Ref. AMM TASK 78-36-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL
(b) FOR [1000EM2] (ENGINE-2)
461AL.

Subtask 36-11-51-440-061-A ** ON A/C NOT FOR ALL

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

Subtask 36-11-51-410-072-A ** ON A/C NOT FOR ALL

C. 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) Close the access door 191MB.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

Subtask 36-11-51-410-071-B ** ON A/C NOT FOR ALL

D. 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 (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL
(b) FOR [1000EM2] (ENGINE-2)
461AL.

Subtask 36-11-51-440-061-B ** ON A/C NOT FOR ALL

E. Do the activation of the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).

Subtask 36-11-51-410-072-B ** ON A/C NOT FOR ALL

F. 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) Close the access door 191MB.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

Subtask 36-11-51-410-071-C ** ON A/C NOT FOR ALL

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

Subtask 36-11-51-440-061-C ** ON A/C NOT FOR ALL

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

Subtask 36-11-51-410-072-C ** ON A/C NOT FOR ALL

I. 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) Close the access door 191MB.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

Subtask 36-11-51-862-058-A ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.04.01 01:12:26 UTC