# SDR IPXA2026011613640

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 2026
- Submitted: January 16, 2026
- Operation: Air carrier
- Aircraft: [N446UP](https://openairdocs.org/aircraft/N446UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 27735
- Aircraft time: 38,772 hours, 21,154 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: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2026011613640

## Discrepancy

AT APPLICATION OF TAKEOFF POWER AND DURING CLIMB-OUT, THE STRONG ODOR OF DIRTY WET SOCK EXISTED. THE SMELL LESSENED A BIT DURING CRUISE BUT WAS STILL NOTABLY PRESENT FOR THE REMAINDER OF THE FLIGHT.  PERFORMED FIM.  INSPECTED POSSIBLE SOURCE AREAS, NO SOURCE NOTED.  RAN BOTH ENGINES ONE AT A TIME. ENGINE RUNS REQUIRED FOR VERIFICATION OF SYS CONTAMINATION REMOVAL REF AMM TASK 21-00-01-002-001 AND FIM 21-00-01/301.  ODOR IN FLIGHT DECK AT AN EXCEPTABLE LEVEL.

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