# SDR DALA2025080705918

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2025
- Submitted: August 7, 2025
- Operation: Air carrier
- Aircraft: [N366NB](https://openairdocs.org/aircraft/N366NB), registered now
- Make and model: Airbus A319-114
- Registry model: [Airbus A319-114](https://openairdocs.org/model/airbus-a319-114) (OpenAirDocs)
- Aircraft serial: 2026
- Aircraft time: 59,474 hours, 30,784 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Condition: Inoperative
- 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/DALA2025080705918

## Discrepancy

PRIMARY OBSERVERS SLIDING SEAT - SEAT UNUSABLE O2 MASK INOPERATIVE.  REMOVED AND REPLACED RT OBSERVER'S O2 MASK STOWAGE BOX IAW A319 AMM 35-12.

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