# SDR UALA2013041902717

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2013
- Submitted: April 23, 2013
- Operation: Air carrier
- Aircraft: [N117UA](https://openairdocs.org/aircraft/N117UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 28810
- Aircraft time: 57,734 hours, 6,898 cycles
- Engine: Pwa PW4056
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: 732591F
- Part serial: 108
- Condition: Broken
- Location: Recirculation
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013041902717

## Discrepancy

FOUND UNDERFLOOR RECIRCULATION FAN BROKEN.  REMOVED FAN REF AMM 21-25-07-0401.   REPLACED WITH NEW RECIRCULATION FAN REF AMM 21-25-07-401.  PERFORMED FAN INSTALLATION TEST REF AMM.  TEST IS OK.

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