Functional Test of the Opening of the Bleed-Pressure Regulator Valve (PRV) with the Bleed Test Set P/N 99127B03 and the Universal Test Port Tool

TASK 36-11-52-720-001-A-04
Functional Test of the Opening of the Bleed-Pressure Regulator Valve (PRV) with the Bleed Test Set P/N 99127B03 and the Universal Test Port Tool

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.

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
FIN: 4001HA ** ON A/C NOT FOR ALL

1. Reason for the Job
This functional test checks the opening of the bleed-pressure regulator valve. With the universal test port tool, it can apply to all types of valves.
The universal test port tool has two sides, red and blue.
Only one of the sides of this tool can be used to check each valve type.

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

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

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 1M(3 FT)
No specific	1	SUPPLY - 28 VDC, ELECTRICAL
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.80 and 0.65 m.daN (70.80 and 57.52 lbf.in )
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
M82000879	1	TEST PORT UNIVERSAL

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, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

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 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
TASK 78-30-00-081-041-A	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-081-041-B	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-A	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-30-00-481-041-B	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-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
Connection of the Universal Test Port-Tool (Red Side) with Bleed-Test Set P/N 99127B03
Bleed-Pressure Regulator Valve - Location
Connection of the Universal Test Port-Tool (Blue Side) with Bleed-Test Set P/N 99127B03

3. Job Set-up
Subtask 36-11-52-861-088-A ** ON A/C NOT FOR ALL

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

Subtask 36-11-52-941-094-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 released (the OFF legend is on).
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 36-11-52-010-143-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 1M(3 FT) in position below the engine.

Subtask 36-11-52-040-103-A ** ON A/C NOT FOR ALL

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

Subtask 36-11-52-010-144-A ** ON A/C NOT FOR ALL

E. Open the thrust reverser doors (Ref. AMM TASK 78-36-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR.

Subtask 36-11-52-010-143-B ** ON A/C NOT FOR ALL

F. 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 1M(3 FT) in position below the engine.

Subtask 36-11-52-040-103-B ** ON A/C NOT FOR ALL

G. Deactivation of the Thrust Reverser

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

Subtask 36-11-52-010-144-B ** ON A/C NOT FOR ALL

H. Open the thrust reverser doors (Ref. AMM TASK 78-36-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR.

4. Procedure
Subtask 36-11-52-480-080-A ** ON A/C NOT FOR ALL

A. Installation of the Tool

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.

(1) Cut, remove and discard the lockwire between the blanking cap and the test port of the bleed-pressure regulator valve.
(2) Remove the blanking cap from the test port.
(3) Connect a M82000879 TEST PORT UNIVERSAL (T32):

CAUTION: ALWAYS TRY TO INSTALL THE RED SIDE OF THE UNIVERSAL TEST PORT TOOL FIRST. IF YOU CANNOT INSTALL THE RED SIDE, INSTALL THE BLUE SIDE.

(a) Install the red side of the M82000879 TEST PORT UNIVERSAL (T32) on the test port of the bleed-pressure regulator valve as follows:

Connection of the Universal Test Port-Tool (Red Side) with Bleed-Test Set P/N 99127B03 ** ON A/C NOT FOR ALL

1 If you can install the red side of the tool:

Make sure that you correctly tighten the blue blanking cap of the M82000879 TEST PORT UNIVERSAL (T32) on the blue port
Go to step 4.A.(4).

2 If you cannot install the red side of the tool, do the steps that follow:
a Remove the blue blanking cap from the blue side of the M82000879 TEST PORT UNIVERSAL (T32).
b Install the blue blanking cap on the red side of the M82000879 TEST PORT UNIVERSAL (T32).
c Tighten the blue blanking cap with your hand.
d Install the blue side of the M82000879 TEST PORT UNIVERSAL (T32) on the test port of the bleed-pressure regulator valve.

Connection of the Universal Test Port-Tool (Blue Side) with Bleed-Test Set P/N 99127B03 ** ON A/C NOT FOR ALL

e Tighten the M82000879 TEST PORT UNIVERSAL (T32) on the bleed-pressure regulator valve with your hand.
(4) Connect the hose (T04) to the bleed-test set pressure-supply (9).
(5) Connect the hose (T05) to the bleed-test set pressure-reading (14).
(6) Connect the hoses (T04) and (T05) to "Y" adaptor (T06).
(7) Connect "Y" adaptor (T06) to the test port adaptor (T25).
(8) Connect the test port adaptor (T25) to the M82000879 TEST PORT UNIVERSAL.
(9) Connect the 99127B03 BLEED TEST SET (T01) to the M82000879 TEST PORT UNIVERSAL (T32) and do the steps that follow:
(a) Use the 99127-231 TEST SET BLEED - KIT to do this test.
(b) Set the pressure gage (5) to ON. The pressure value given on the LCD screen must be 0 psi (0 bar). If it is not 0 psi (0 bar), push the ON button for 10 seconds.
(10) Connect 28VDC electrical cord (T03) between the electrical inlet (11) of the 99127B03 BLEED TEST SET (T01) and an external SUPPLY - 28 VDC, ELECTRICAL and do the steps that follow:

Start the SUPPLY - 28 VDC, ELECTRICAL.

(11) Open the pressure-source shut-off valve and slowly pressurize the 99127B03 BLEED TEST SET to 100 psi (6.89 bar).
(12) Do the test:
(a) If you installed the red side of the tool, do the test given in paragraph 4.B.
(b) If you installed the blue side of the tool, do the test given in paragraph 4.C.

Subtask 36-11-52-720-072-A ** ON A/C NOT FOR ALL

B. Functional Test of the Bleed-Pressure Regulator Valve with the M82000879 TEST PORT UNIVERSAL (Red Side)

Connection of the Universal Test Port-Tool (Red Side) with Bleed-Test Set P/N 99127B03 ** ON A/C NOT FOR ALL

ACTION	RESULT
1.On the test set: Set the blue valve (7) to ON.
2.On the test set: With pressure gage A (3), increase the pressure to 15 psi (1.0342 bar).	On the test set: The pressure value is shown on the LCD (5).
	On the bleed-pressure regulator valve: The visual position indicator shows that the valve is open.
3.In the cockpit, on AIR COND panel 30VU: Release the related ENG BLEED pushbutton-switch (OFF legend comes on).	On the bleed-pressure regulator valve: The visual position indicator shows that the valve is closed.
4.In the cockpit, on AIR COND panel 30VU: Push the related ENG BLEED pushbutton-switch (OFF legend goes off).	On the bleed-pressure regulator valve: The visual position indicator shows that the valve is open.
5.On the test set: With pressure gage A (3), decrease the pressure to 0 psi (0 bar).	On the bleed-pressure regulator valve: The visual position indicator shows that the valve is closed.
6.In the cockpit, on AIR COND panel 30VU: Release the related ENG BLEED pushbutton-switch (OFF legend comes on).

Subtask 36-11-52-720-077-A ** ON A/C NOT FOR ALL

C. Functional Test of the Bleed-Pressure Regulator Valve with the M82000879 TEST PORT UNIVERSAL (Blue Side)

Connection of the Universal Test Port-Tool (Blue Side) with Bleed-Test Set P/N 99127B03 ** ON A/C NOT FOR ALL

ACTION	RESULT
1.On the test set: Set the blue valve (7) to ON. For the bleed-pressure regulator valve with the deactivation screw in the position on the regulator (Valve A), go to step A. For the bleed-pressure regulator valve with the deactivation screw in the position on the butterfly valve (Valve B), go to step B.
A.On the test set: With pressure gage A (3), increase the pressure to 15 psi (1.0342 bar)).	On the test set: The pressure value is shown on the LCD (5).
	On the bleed-pressure regulator valve: The visual position indicator shows that the valve is open.
B.On the test set: With pressure gage A (3), increase the pressure to 16.68 psi (1.1500 bar).	On the test set: The pressure value is shown on the LCD (5).
	On the bleed-pressure regulator valve: The visual position indicator shows that the valve is open.
2.In the cockpit, on AIR COND panel 30VU: Release the related ENG BLEED pushbutton-switch (the OFF legend comes on).	On the bleed-pressure regulator valve: The visual position indicator shows that the valve is closed.
3.In the cockpit, on AIR COND panel 30VU: Push the related ENG BLEED pushbutton-switch (the OFF legend goes off).	On the bleed-pressure regulator valve: The visual position indicator shows that the valve is open.
4.On the test set: With pressure gage A (3), decrease the pressure to 0 psi (0 bar).	On the bleed-pressure regulator valve: The visual position indicator shows that the valve is closed.
5.In the cockpit, on AIR COND panel 30VU: Release the related ENG BLEED pushbutton-switch (the OFF legend comes on).

Subtask 36-11-52-080-080-A ** ON A/C NOT FOR ALL

D. 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 M82000879 TEST PORT UNIVERSAL (T32) from the test port of the bleed-pressure regulator valve and from the 99127B03 BLEED TEST SET.
(4) Disconnect the test port adaptor (T25) from the M82000879 TEST PORT UNIVERSAL.
(5) Disconnect "Y" adaptor (T06) from the test port adaptor (T25).
(6) Disconnect the hoses (T04) and (T05) from "Y" adaptor (T06).
(7) Disconnect the hose (T05) from the bleed-test set pressure-reading (14).
(8) Disconnect the hose (T04) from the bleed-test set pressure-supply (9).
(9) Install the blanking cap on the test port of the PRV as follows:
(a) For PRV standard 6774B and 6714D:

TORQUE the blanking cap to between 1.2 and 1 m.daN (106.19 and 88.50 lbf.in ) .

(b) For PRV standard 6773E, 6773F and 6773G:

TORQUE the blanking cap to between 0.80 and 0.65 m.daN (70.80 and 57.52 lbf.in ) .

(10) Safety the blanking cap with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
(11) Install and tighten the blue blanking cap with your hand on the M82000879 TEST PORT UNIVERSAL (T32), if it is removed.

5. Close-up
Subtask 36-11-52-410-136-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 doors (Ref. AMM TASK 78-36-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.

Subtask 36-11-52-440-094-A ** ON A/C NOT FOR ALL

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

Subtask 36-11-52-410-137-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 36-11-52-410-136-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 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 36-11-52-440-094-B ** ON A/C NOT FOR ALL

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

Subtask 36-11-52-410-137-B ** ON A/C NOT FOR ALL

F. 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 36-11-52-862-086-A ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.04.01 01:12:55 UTC