# SDR UALA2011042101927

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2011
- Submitted: May 5, 2011
- Operation: Air carrier
- Aircraft: N552UA
- Make and model: Boeing 757222
- Aircraft serial: 26641
- Aircraft time: 73,551 hours, 21,203 cycles
- Engine: Pwa PW2037
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: 6455072
- Part serial: 22
- Condition: Faulty
- Location: Cockpit
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011042101927

## Discrepancy

UNCOMFORTABLE, AFFECT PILOTS-ATC COMMUNICATIONS TURNING R RECIRC FAN OFF PROVEN LITTLE HELP.  RECIRC FAN IS OLD STYLE WITHOUT BAFFLE.  PER SERVICE TIP OK TO DEFER FOR FAN REPLACEMENT.  NEED FAN PCN 564-0211.  REPLACED RIGHT RECIRC FAN, OPS CHECK GOOD.

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