# SDR DALA2025120408877

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 1, 2025
- Submitted: December 4, 2025
- Operation: Air carrier
- Aircraft: [N314DU](https://openairdocs.org/aircraft/N314DU), registered now
- Make and model: Airbus BD-500-1A11
- Registry model: [Airbus BD-500-1A11](https://openairdocs.org/model/airbus-canada-lp-bd-500-1a11) (OpenAirDocs)
- Aircraft serial: 55192
- Aircraft time: 8,723 hours, 3,677 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/DALA2025120408877

## Discrepancy

CREW REPORTED DIRTY SOCK SMELL ON DESCENT. PILOTS ON O2 AND EMERGENCY DECLARED.   T/S PER MSI WORKCARDS. ISOLATED PNEUMATIC SYSTEM, RAN ENGINES USING P-TRAK. NO ABNORMAL ODORS PRESENT. REPLACED RECIRC FILTERS. NO ODORS. ACFT RTS. (LP# 8035472)

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