W DOC AIRBUS | TSM A320F

Loss of the Non-Return Function and Temperature Limitation Function of the Bleed Pressure-Regulator Valve of the Engine 2

TASK 36-11-00-810-830-A
Loss of the Non-Return Function and Temperature Limitation Function of the Bleed Pressure-Regulator Valve of the Engine 2

1. Possible Causes
  • VALVE-BLEED PRESS REG [4001HA]
  • SOLENOID-BLEED PRESS REG V CTL, ENG 2 [10HA2]
  • sense line
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
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 36-11-49-400-029
Installation of the Pneumatic Sense Lines in the Pylon
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 36-11-52-720-001
Functional Test of the Opening of the Bleed-Pressure Regulator Valve (PRV) with the Bleed Test Set P/N 98D36003000000
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 36-11-00-710-100-B ** ON A/C NOT FOR ALL
A. Test
   (1) Do the operational test of the BMC2 (with the CFDS) AMM 36-11-00-740-001.
   (2) Do the test of the bleed pressure-regulator valve AMM 36-11-52-720-001.
4. Fault Isolation
Subtask 36-11-00-810-076-C ** ON A/C NOT FOR ALL
A. If the fault symptom is identified by the maintenance message:
PRESS REG-V 4001HA2 OR SOL 10HA2 OR SENSE LINE:
  • do a check of the regulation by the bleed pressure-regulator valve.
   (1) If the regulation by the bleed pressure-regulator valve is too low:
  • do a check and clean the sense line which goes to the bleed transferred-pressure transducer (7HA2) (from the bleed pressure-regulator valve control-solenoid (10HA2) to the bleed pressure-regulator valve (4001HA).
     (a) If the sense line has no internal leaks:
   (2) If the operation of the bleed pressure-regulator valve is intermittent:
     (a) If the fault continues:
  • replace the sense line between the bleed pressure-regulator valve (4001HA) and the bleed-pressure regulator-valve control-solenoid (10HA2) and/or between the bleed-pressure regulator-valve control-solenoid (10HA2) and the bleed transferred-pressure transducer (7HA2) AMM 36-11-49-000-029 and AMM 36-11-49-400-029.
Subtask 36-11-00-810-076-F ** ON A/C NOT FOR ALL
A. If the fault symptom is identified by the maintenance message:
PRESS REG-V 4001HA2 OR SOL 10HA2 OR SENSE LINE:
  • Do a check of the regulation by the bleed pressure-regulator valve.
   (1) If the regulation by the bleed pressure-regulator valve is too low:
  • Do a check and clean the sense line that goes to the bleed transferred-pressure transducer (7HA2) (from the bleed pressure-regulator valve control-solenoid (10HA2) to the bleed pressure-regulator valve (4001HA)).
     (a) If the sense line has no internal leaks:
   (2) If the operation of the bleed pressure-regulator valve is intermittent:
     (a) If the fault continues:
  • Replace the sense line between:
    . the bleed pressure-regulator valve (4001HA) and the bleed pressure-regulator valve control-solenoid (10HA2)
    and/or
    . the bleed pressure-regulator valve control-solenoid (10HA2) and the bleed transferred-pressure transducer (7HA2).
Subtask 36-11-00-710-101-A ** ON A/C NOT FOR ALL
B. Do the test given in Para. 3.
[Rev.8 from Aug 2018] 2026.04.04 04:40:27 UTC
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