# SDR DALA2026010500051

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 30, 2025
- Submitted: January 5, 2026
- Operation: Air carrier
- Aircraft: [N335NW](https://openairdocs.org/aircraft/N335NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 340
- Aircraft time: 91,413 hours, 42,067 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: Unwanted Deploy
- Location: Zone 200
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026010500051

## Discrepancy

DURING POWER TRANSFER FROM GPU TO APU, A FEW OXYGEN MASK FELL ON THE REAR OF THE AIRCRAFT.  RESTOWED OXYGEN MASK IN RT AFT GALLEY. REF AMM 35-21. (LP: 8031298)

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