# SDR CALA2017091803227

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2017
- Submitted: September 18, 2017
- Operation: Air carrier
- Aircraft: [N107UA](https://openairdocs.org/aircraft/N107UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 26900
- Aircraft time: 75,493 hours, 8,600 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: 6054578
- Part serial: 0351
- Condition: Failed
- Location: Crew Rest
- Stage of operation: IN
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2017091803227

## Discrepancy

AFT CREW REST AIR SUPPLY FAN VIBRATES AND HAS BURNING ODOR INSIDE CREW REST AREA.  REPLACED CREW AIR SUPPLY RECIRCULATION FAN AND OPS CHECKED.

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