# SDR GTIA2021011835551

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2021
- Submitted: January 18, 2021
- Operation: Air carrier
- Aircraft: [N905NK](https://openairdocs.org/aircraft/N905NK), registered now
- Make and model: Airbus A320-271N
- Registry model: [Airbus A320-271N](https://openairdocs.org/model/airbus-a320-271n) (OpenAirDocs)
- Aircraft serial: 7334
- Aircraft time: 10,602 hours
- Engine: Iae PW1127GJM
- System (JASC): [7520 · Engine Cooling System](https://openairdocs.org/jasc/7520)
- Part: Valve
- Condition: Out Of Round
- Location: Nr 1 Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA2021011835551

## Discrepancy

ENGINE 1 SYSTEM FAULT.  IN FLIGHT NO ABNORMAL PARAMETERS OBSERVED, REF TFU 75.24.00001.  FOUND ACC VALVE OUT OF ROUND.  R & R ACC VALVE 4020KM1, IAW AMM 75-24-01.  PERFORMED FADEC SYSTEM IDLE TEST, IAW AMM 73-21-00, TEST OKAY.  PERFORMED DRY MOTOR ENGINE ACTUATOR TEST, IAW AMM 73-21-00 AND IDLE LEAK CHECK, CHECKS OKAY.

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