# SDR DALA2026010500068

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 1, 2026
- Submitted: January 5, 2026
- Operation: Air carrier
- Aircraft: [N891AT](https://openairdocs.org/aircraft/N891AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55043
- Aircraft time: 50,818 hours, 36,359 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026010500068

## Discrepancy

ATB,  PERFORMED AN AIR TURN BACK DUE TO A FUME OR ODOR CONSISTENT WITH A WET DIRTY SOCK SMELL.   MAINTENANCE COMPLIED WITH ALL NO-GO MSI STEPS AND REPLACED THE LEFT ENGINE BUFFERED AIR VALVE FOR PRECAUTIONARY.(8152312)

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