# SDR DALA2021022301064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 2021
- Submitted: February 23, 2021
- Operation: Air carrier
- Aircraft: [N505DN](https://openairdocs.org/aircraft/N505DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0164
- Aircraft time: 13,866 hours, 1,311 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: Unwanted Deploy
- Location: Seat 40 Def
- Stage of operation: LD
- 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/DALA2021022301064

## Discrepancy

SHIP 3505 40 DEF OXYGEN MASK DROPPED ON LANDING.  CORRECTIVE ACTION:  CHKS O2 MASK & CYLINDER.  ALSO SECURED & STOWED.  (7666808)

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