# SDR DALA2017042403326

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 2017
- Submitted: April 24, 2017
- Operation: Air carrier
- Aircraft: N670US
- Make and model: Boeing 747451
- Aircraft serial: 24225
- Aircraft time: 112,285 hours, 13,644 cycles
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Heater
- Condition: Odor
- Location: Crew Rest Area
- 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/DALA2017042403326

## Discrepancy

FLIGHT ATTENDANTS COMPLAINED ABOUT FUMES IN F/A CREW REST AREA. TURNED OFF RECIRCULATION FANS AND ODOR DISSIPATED.  MAINTENANCE DISCOVERED THE ODOR COMING FROM HEATER. REPLACED SAME. RAN PACKS AND RECIRCULATION FANS WITH NO FURTHER FINDINGS.

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