DOC AIRBUS | TSM A320FEPR Fluctuations on Engine 2 during Flight
1. Possible Causes
· VALVE-BLEED PRESS REG ( 4001HA )
· bleed pressure regulator valve control solenoid (10HA)
2 Job Set-up Information
A. Referenced Information
REFERENCE DESIGNATION
36-11-00-810-901-A High Variation of the Bleed Pressure Indication for the Engine 2
Ref. ASM 36-11-01
Ref. AMM 36-11-52-000-010 Removal of the Bleed Pressure-Regulator Valve
Ref. AMM 36-11-52-400-010 Installation of the Bleed Pressure-Regulator Valve
Ref. AMM 36-11-55-000-001 Removal of the Bleed-Pressure-Regulator Valve Control-Solenoid
Ref. AMM 36-11-55-400-001 Installation of the Bleed-Pressure-Regulator Valve Control-Solenoid
3. Fault Confirmation
Subtask 71-00-00-710-087-A
A. Not Applicable
4. Fault Isolation
Subtask 71-00-00-810-099-A
A. Check of the Pressure Regulator Valve (PRV) (4001HA) on Engine 2
(1) Check the PRV (4001HA) connector on engine 2.
(2) If the fault continues:
· Check the wiring between VALVE-BLEED PRESS REG (4001HA) connector AA, pins 1 and 5 and
BMC-2 (1HA2) connector AA pins 1B and 2B Ref. ASM 36-11-01.
(3) If the fault continues:
· Check the sense line between the PRV (4001HA) and the bleed pressure regulator valve control
solenoid (10HA) for leaks (Ref. TSM 36-11-00-810-901) .
(4) If the fault continues:
· Replace the VALVE-BLEED PRESS REG ( 4001HA ) Ref. AMM 36-11-52-000-010 and Ref.
AMM 36-11-52-400-010 .
(5) If the fault continues:
· Replace the bleed pressure regulator valve control solenoid (10HA) Ref. AMM 36-11-55-000-001
and Ref. AMM 36-11-55-400-001 . [Rev.6 from Feb 2017] 2026.04.04 04:35:01 UTC