# SDR SWAA2026072855093

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2026
- Submitted: July 29, 2026
- Operation: Air carrier
- Aircraft: [N7831B](https://openairdocs.org/aircraft/N7831B), registered now
- Make and model: Boeing 737-7CT
- Registry model: [Boeing 737-7CT](https://openairdocs.org/model/boeing-737-7ct) (OpenAirDocs)
- Aircraft serial: 32752
- Aircraft time: 72,252 hours, 38,418 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Condition: Dirty
- Location: Zone 100
- Stage of operation: DE
- 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/SWAA2026072855093

## Discrepancy

FLIGHT ATTENDANTS REPORTED BURNING, AMMONIA ODOR IN FWD GALLEY AREA DURING DESCENT FROM FL180.  NO SMOKE. PERFORMED FUMES IN CABIN CONDITIONAL INSPECTION IAW AMM 05-51-56 AND FOUND RECIRCULATION FILTER EXCESSIVELY DIRTY. CLEANED FILTER HOUSING & R & R RECIRCULATION FILTER IAW AMM 21-25-01. OPS CHECK GOOD WITH NO ODOR PRESENT.

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