The Bleed Pressure-Regulator Valve of the Engine 2 is Shown Closed Amber on the Lower ECAM DU

TASK 36-11-00-810-908-A
The Bleed Pressure-Regulator Valve of the Engine 2 is Shown Closed Amber on the Lower ECAM DU

1. Possible Causes

XDCR-BLEED TRANSFER PRESS, ENG 2 [7HA2]
VALVE-BLEED PRESS REG [4001HA]
SOLENOID-BLEED PRESS REG V CTL, ENG 2 [10HA2]
sense line between the bleed pressure-regulator valve (4001HA) and the control solenoid (10HA2)
wiring

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 36-11-00-720-007	Functional Test of the Sense Lines Connected to the Bleed Pressure-Regulator Valve with the Bleed Test Set P/N 98D36003000000
AMM 36-11-00-740-001	BITE Test of the BMC 1(2)
ASM 361102
AMM 36-11-15-000-001	Removal of the Bleed Transferred Pressure-Transducer
AMM 36-11-15-400-001	Installation of the Bleed Transferred Pressure-Transducer
AMM 36-11-15-720-001	Functional Test of the Bleed Transferred Pressure-Transducer with the Bleed Test Set P/N 98D36003000000
AMM 36-11-49-000-029	Removal of the Pneumatic Sense Lines in the Pylon
AMM 36-11-49-000-042	Removal of the Pylon Interface Duct
AMM 36-11-49-400-029	Installation of the Pneumatic Sense Lines in the Pylon
AMM 36-11-49-400-042	Installation of the Pylon Interface Duct
AMM 36-11-52-000-040	Removal of the Bleed Pressure-Regulator Valve
AMM 36-11-52-000-042	Removal of the Bleed Pressure Regulator Valve
AMM 36-11-52-400-040	Installation of the Bleed Pressure-Regulator Valve
AMM 36-11-52-400-042	Installation of the Bleed Pressure Regulator Valve
AMM 36-11-55-000-001	Removal of the Bleed-Pressure-Regulator Valve Control-Solenoid
AMM 36-11-55-400-001	Installation of the Bleed-Pressure-Regulator Valve Control-Solenoid

3. Fault Confirmation
Subtask 36-11-00-710-262-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the BITE test of the BMC2 AMM 36-11-00-740-001.

4. Fault Isolation
Subtask 36-11-00-810-158-A ** ON A/C NOT FOR ALL

A. If the test gives a maintenance message:

do the trouble shooting procedure related to the maintenance message.

(1) If there is no maintenance message:

do the functional test of the bleed transferred pressure transducer (7HA2) AMM 36-11-15-720-001.

(a) If the test is not OK:

replace the XDCR-BLEED TRANSFER PRESS, ENG 2 [7HA2] AMM 36-11-15-000-001 AMM 36-11-15-400-001.

(b) If the test is OK:

replace the VALVE-BLEED PRESS REG [4001HA] AMM 36-11-52-000-040 and AMM 36-11-52-400-040.

1 If the fault continues:

replace the SOLENOID-BLEED PRESS REG V CTL, ENG 2 [10HA2] AMM 36-11-55-000-001 and AMM 36-11-55-400-001.

CAUTION: USE TWO WRENCHES DURING DISCONNECTION OF THE SENSE LINE, ONE TO MAINTAIN THE FIXED NUT AND THE SECOND ONE TO LOOSEN/TIGHTEN THE SENSE LINE COUPLING.

CAUTION: BE CAREFUL WITH THE SEMI-FLEXIBLE SENSE LINE. DEFORMATION OF THE RIGID PART OR LARGE DEFORMATION OF THE FLEXIBLE PART CAN QUICKLY CAUSE LEAKAGE.

a If the fault continues:

do the functional test of the upstream sense line between the bleed pressure-regulator valve (4001HA) and the control solenoid (10HA2) AMM 36-11-00-720-007.

* If the pressure decreases to 0 psig in less than 20 seconds:
* - replace the sense line between the bleed pressure-regulator valve (4001HA) and the control solenoid (10HA2) AMM 36-11-49-000-029 and AMM 36-11-49-400-029.

* If the pressure drop is not high:
* - do a check and repair the wiring :
. from the FULLY CLOSED signal of the BMC2 (1HA2) to the bleed pressure-regulator valve (4001HA)
. from pin A/5 of the bleed pressure-regulator valve (4001HA) to the first terminal block ASM 361102.

Subtask 36-11-00-810-158-D ** ON A/C NOT FOR ALL