# SDR DALA109716309

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2010
- Submitted: May 12, 2010
- Operation: Air carrier
- Aircraft: N669US
- Make and model: Boeing 747451
- Aircraft serial: 24224
- Aircraft time: 85,325 hours, 10,461 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Condition: Malfunctioned
- Location: Crew Rest
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA109716309

## Discrepancy

DURING CRUISE, F/A REPORTED A STRONG BURNING SMELL IN THE F/A BUNK.  CREW FOLLOWED QRM AND SHUT OFF ALL RECIRC FANS.  SMELL DISAPPEARED.  MX FOUND THE CREW REST SUPPLY FAN CIRCUIT BREAKER OUT AND REPLACED THE SUPPLY FAN.  OPS TEST WAS GOOD.

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