# SDR AWXA200400054

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2004
- Submitted: January 20, 2004
- Operation: Air carrier
- Aircraft: [N622AW](https://openairdocs.org/aircraft/N622AW), registered now
- Make and model: Airbus A320-231
- Registry model: [Airbus A320-231](https://openairdocs.org/model/airbus-industrie-a320-231) (OpenAirDocs)
- Aircraft serial: 054
- Aircraft time: 45,418 hours, 20,514 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Solenoid Valve
- Part number: S4340092002
- Condition: Leaking
- Location: Zone 140
- Stage of operation: TO
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: C, D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AWXA200400054

## Discrepancy

ORD - ABORTED TAKEOFF - FLT 0654 - ON TAKEOFF AT ORD EN ROUTE FOR PHX RECEIVED YELLOW HYDRAULIC RESERVOIR LOW LEVEL INDICATION WITH ASSOCIATED BRAKE, ANTI-SKID, AND NOSE WHEEL STEERING FAULTS ON UPPER ECAM, REJECTED TAKEOFF BELOW 80 KTS.  MAINTENANCE FOUND FLUID LEAKING FROM A CRACK IN THE POWER TRANSFER UNIT SOLENOID VALVE (1012GL) (2 WAY VALVE).  REPLACED CRACKED VALVE IAW AMM 29-23-51-401.  SERVICED YELLOW HYDRAULIC SYSTEM AND PERFORMED ENGINE RUN, OPERATIONAL AND LEAK CHECKS WERE GOOD. FUNCTIONAL TEST OF POWER TRANSFER UNIT SOLENOID VALVE S/N 0141 CONFIRMED FAILURE OF UNIT FOR INTERMITTENT OPENING AND CLOSING. REPLACED SEAL'S, O-RINGS, AND BACK UP RINGS, UNIT REPAIRED IAW CMM 29-10-12.

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