# SDR DALA2025091106705

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2025
- Submitted: September 11, 2025
- Operation: Air carrier
- Aircraft: [N343NW](https://openairdocs.org/aircraft/N343NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 387
- Aircraft time: 95,206 hours, 43,160 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: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025091106705

## Discrepancy

UPON ARRIVAL AFT LEFT LAV OXYGEN MASK DEPLOYED FROM CEILING.  RESTOWED OXYGEN MASKS IN THE AFT LEFT LAV PER 320 AMM 35-21. VERFIED DOOR SECURED. A/C OK FOR SVC. (LP: 7595500)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.