# SDR DALA2026050102780

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2026
- Submitted: May 2, 2026
- Operation: Air carrier
- Aircraft: [N360NW](https://openairdocs.org/aircraft/N360NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 903
- Aircraft time: 80,292 hours, 38,062 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: MXP80111
- Condition: No Test
- Location: Zone 200
- Stage of operation: TX
- How discovered: C
- Nature of condition: L
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026050102780

## Discrepancy

CAPT O2 MASK PRESS TO TEST BUTTON IS BROKEN AND CANNOT TEST O2 MASK.   SWAPPED CAPTS WITH 4TH OBS, FWD TO MEL/PLAC 25-11-07, "M" PROC C /W. R & R ADDITIONAL OBSERVERS (FOURTH OCCUPANT) OXYGEN MASK STOWAGE BOX IAW AMM 35-12. OPS CHECK GOOD AND NO LEAKS NOTED. M.E.L AND PLACARDS REMOVED. "M" PROCEDURE REVERSED. (LP: 8675982). AIRCRAFT WAS GROUNDED

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