# SDR DALA2026040402156

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2026
- Submitted: April 4, 2026
- Operation: Air carrier
- Aircraft: [N344NW](https://openairdocs.org/aircraft/N344NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 388
- Aircraft time: 97,539 hours, 45,401 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: No Test
- 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/DALA2026040402156

## Discrepancy

FAILED OXYGEN MASK DROP AT 21R, 24L, AND 29R.   PERFORMED GVI OF PSU WIRING AND REPACKED MASKS REF A320 35-21-43 . SUBSEQUENT MASK DEPLOYMENT TEST CHECKS GOOD REF A.A CARD 2527- 01041-02. OK FOR SERVICE. (LP: 8515244) AIRCRAFT WAS GROUNDED.

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