# SDR UALA2013071004802

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2013
- Submitted: July 12, 2013
- Operation: Air carrier
- Aircraft: [N799UA](https://openairdocs.org/aircraft/N799UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26926
- Aircraft time: 66,878 hours, 9,505 cycles
- Engine: Pwa PW4090
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Module
- Part number: 095310002
- Condition: Failed
- Location: Recirc  Fan
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013071004802

## Discrepancy

RECIRCULATION FAN FAILED.   MESSAGE STATES THAT THE UPPER FAN SWITCH FAILED.   REPLACED UPPER RECIRCULATION FAN SWITCH CAP MODULE.  CMC GROUND TEST OPCF-L AND RECIRCULATION FAN PASSED.  NO MESSAGE.

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