# SDR UALA2012101005775

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2012
- Submitted: October 12, 2012
- Operation: Air carrier
- Aircraft: N554UA
- Make and model: Boeing 757222
- Aircraft serial: 26644
- Aircraft time: 72,110 hours, 21,493 cycles
- Engine: Pwa PW2037
- System (JASC): [3800 · Water and Waste System](https://openairdocs.org/jasc/3800)
- Part: Compressor
- Part number: 60B500126
- Condition: Noisy
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012101005775

## Discrepancy

CLICKING SOUND COMING FROM UNDER THE AFT GALLEY FLOOR.  NOISE STOPS WHEN P6 K21 CIRCUIT BREAKER IS OPENED. REPLACED COMPRESSOR.

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