# SDR UALA2012080804271

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 2012
- Submitted: September 12, 2012
- Operation: Air carrier
- Aircraft: [N648UA](https://openairdocs.org/aircraft/N648UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25285
- Aircraft time: 84,681 hours, 13,542 cycles
- Engine: Pwa PW4060
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Switch
- Condition: Dirty
- Location: Fan
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012080804271

## Discrepancy

RT RECIRCULATION FAN LIGHT FAILS TO TEST.   LIGHT WORKS BY OPERATING THE RECIRCULATION FAN SWITCH.  THE LIGHT DID NOT WORK WHEN USING THE LIGHT TEST SWITCH.  CLEANED SWITCH, OPS CHECK NORMAL

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