# SDR GTIA2025100939121

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 2025
- Submitted: October 9, 2025
- Operation: Air carrier
- Aircraft: [N922NK](https://openairdocs.org/aircraft/N922NK), registered now
- Make and model: Airbus A320-271N
- Registry model: [Airbus A320-271N](https://openairdocs.org/model/airbus-a320-271n) (OpenAirDocs)
- Aircraft serial: 9341
- Aircraft time: 18,971 hours, 8,097 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- 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/GTIA2025100939121

## Discrepancy

STRONG SKUNK SMELL ON DESCENT THRU 5000' PACK 1 OFF ISOLATE SMELL. DESCRIPTION OF ODOR/FUMES: PERSISTENT, MUSTRY DRY/ DIRTY SOCKS SMELL. APPARENT CABIN SOURCE: CABIN AIR SUPPLY VENTS. FLIGHT DECK AND FWD CABIN. NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED.-AS PER TSM 05-50-00-810-831 AND TSM 71-00-00-810-847-A, FOUND ENG 1 AND ENG 2 OVERSRVICED BOTH ENGINES DRAINED TO LIMITS IAW AMM 79-00-00. PERFORMED ECS LEVEL B DECONTAMINATION IAW AMM 21-00-00. R/R RECIRCULATION FILTERS. NO DEFECTS NOTED A/C OK FOR CONTINUED SVC.

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