W DOC AIRBUS | TSM A320F

Variation of the Bleed Pressure Indication for the Engine 2

TASK 36-11-00-810-899-A
Variation of the Bleed Pressure Indication for the Engine 2

1. Possible Causes
  • sense line between the bleed-pressure regulator valve of the engine 2 (4001HA) and the control solenoid (10HA2)
  • SOLENOID-BLEED PRESS REG V CTL, ENG 2 [10HA2]
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
Torque wrench: range to between 1.76 and 1.44 m.daN (12.98 and 10.62 lbf.ft ) T
 B. 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)
AMM 36-11-49-000-029
Removal of the Pneumatic Sense Lines in the Pylon
AMM 36-11-49-000-820
Removal of the Pneumatic Sense Lines in the Pylon
AMM 36-11-49-400-029
Installation of the Pneumatic Sense Lines in the Pylon
AMM 36-11-49-400-820
Installation of the Pneumatic Sense Lines in the Pylon
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 36-11-00-710-244-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
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.
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.
Subtask 36-11-00-810-149-C ** 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 a check of the sense line unions at the bleed-pressure regulator valve of the engine 2 (4001HA) and the related control solenoid (10HA2).
     (a) If the unions are loose:
  • TORQUE them to between 1.76 and 1.44 m.daN (12.98 and 10.62 lbf.ft ) T.
     (b) If the unions are correctly tighten:
       1 If the pressure decreases quickly:
       2 If the pressure decreases slowly or stays constant:
  • Do a check for leaks on the sense line at the engine/pylon connection.
    To do this, move the sense line manually
         a If the pressure decreases quickly:
         b If the pressure decreases slowly:
Subtask 36-11-00-810-149-D ** 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 a check of the sense line unions at the bleed-pressure regulator valve of the engine 2 (4001HA) and the related control solenoid (10HA2).
     (a) If the unions are loose:
  • TORQUE them to between 1.76 and 1.44 m.daN (12.98 and 10.62 lbf.ft ) T.
     (b) If the unions are correctly tightened:
       1 If the pressure decreases quickly:
       2 If the pressure decreases slowly or stays constant:
  • Do a check for leaks on the sense line at the engine/pylon connection.
    To do this, manually move the sense line.
         a If the pressure decreases quickly:
         b If the pressure decreases slowly:
Subtask 36-11-00-710-245-A ** ON A/C NOT FOR ALL
B. After the subsequent flight, make sure that the fault does not continue.
[Rev.8 from Aug 2018] 2026.04.04 04:33:48 UTC
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