# SDR DALA2020122304243

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2020
- Submitted: December 23, 2020
- Operation: Air carrier
- Aircraft: [N504DN](https://openairdocs.org/aircraft/N504DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0160
- Aircraft time: 13,467 hours, 1,216 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: Unwanted Deploy
- Location: Seat 22d
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2020122304243

## Discrepancy

O2 MASK DEPLOYED AT SEAT 22D.  CORRECTIVE ACTION: RE-PACKED MASK AT 22D, PER CMM 35-21-62.

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