# SDR DALA2026052203123

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2026
- Submitted: May 22, 2026
- Operation: Air carrier
- Aircraft: [N859NW](https://openairdocs.org/aircraft/N859NW), registered now
- Make and model: Airbus A330-223
- Registry model: [Airbus A330-223](https://openairdocs.org/model/airbus-a330-223) (OpenAirDocs)
- Aircraft serial: 0722
- Aircraft time: 82,847 hours, 10,424 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: Deployed
- Location: Zone 200
- Stage of operation: NR
- 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/DALA2026052203123

## Discrepancy

FA BUNK 5 OXYGEN MASK DEPLOYED.   PACKED MASKS PER AMM 35-21. (1605377) AIRCRAFT WAS GROUNDED.

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