# SDR DALA2026032301943

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 2026
- Submitted: March 23, 2026
- Operation: Air carrier
- Aircraft: [N431DX](https://openairdocs.org/aircraft/N431DX), registered now
- Make and model: Airbus A330-941
- Registry model: [Airbus A330-941](https://openairdocs.org/model/airbus-a330-941) (OpenAirDocs)
- Aircraft serial: 2073
- Aircraft time: 7,020 hours, 846 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: Unwanted Deploy
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026032301943

## Discrepancy

L3 DOOR OXYGEN MASK HAS DROPPED.   REPACKED MASKS PER A330 AMM 35-23. (8505584)

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