# SDR UALA2011021100746

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2011
- Submitted: February 17, 2011
- Operation: Air carrier
- Aircraft: [N538UA](https://openairdocs.org/aircraft/N538UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 25222
- Aircraft time: 65,054 hours, 23,957 cycles
- Engine: Pwa PW2040
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: 6455072
- Part serial: 405
- Condition: Noisy
- Location: Right
- Stage of operation: NR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011021100746

## Discrepancy

COCKPIT COMMUNICATIONS DIFFICULT DUE TO EXCESSIVE NOISE.   RT  RECIRCULATION FAN OFF HELPS CHRONIC PROBLEM.  REPLACED RT CABIN AIR RECIRCULATION FAN.

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