# SDR GTIA2023030237005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2023
- Submitted: March 2, 2023
- Operation: Air carrier
- Aircraft: [N905NK](https://openairdocs.org/aircraft/N905NK), registered now
- Make and model: Airbus A320-271N
- Registry model: [Airbus A320-271N](https://openairdocs.org/model/airbus-a320-271n) (OpenAirDocs)
- Aircraft serial: 7334
- Aircraft time: 17,923 hours, 7,597 cycles
- System (JASC): [2100 · Air Conditioning System](https://openairdocs.org/jasc/2100)
- Part: None
- Condition: None
- Stage of operation: DE
- How discovered: V
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA2023030237005

## Discrepancy

ON DESENT AT IDLE, PASSING ABOUT 14,000' AN ODOR OF WET SOCKS ENTERED THE COCKPIT & FORWARD CABIN. PACK 1 WAS TURNED OFF & THE ODOR WAS ELIMINATED IMMEDIATELY. -R/R RECIRCULATION FILTERS 4012HM + 4013HM IAW AMM 21-21-41 AND TSM 05-50-00-810-831-A FOUND PACK 1 TO BE THE SOURCE. PERFORMED ENG RUN IAW AMM 71-00-00. SMELL RETURNED. REF LP 3007977-2 FOR DEFERRAL

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