# SDR DALA2025122809429

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2025
- Submitted: December 28, 2025
- Operation: Air carrier
- Aircraft: [N328NW](https://openairdocs.org/aircraft/N328NW), registered now
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- Aircraft serial: 298
- Aircraft time: 92,851 hours, 43,628 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: Unwanted Deploy
- Location: Zone 200
- Stage of operation: CL
- 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/DALA2025122809429

## Discrepancy

PASSENGER OXYGEN MASKS ROW 28 DEF DROPPED ON TAKEOFF. C/A: REPLACED OXYGEN MASKS IN CONTAINER AND SECURED DOOR CLOSED AND LOCKED REF A320 AMM 35-21. (LP: 8069166)

---
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.