# SDR SWAA2025081299736

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 8, 2025
- Submitted: August 12, 2025
- Operation: Air carrier
- Aircraft: [N949WN](https://openairdocs.org/aircraft/N949WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36663
- Aircraft time: 48,675 hours, 29,565 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2025081299736

## Discrepancy

RETURN TO GATE FOR RANCID SMELL IN COCKPIT.   RAN ENGINES WITH CREW TO 65% N1- ODOR DISSIPATED AND ALL ENGINE INDICATIONS WERE NORMAL IAW AMM 71-00-00 AND AMM 05-51-56.

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