# SDR AALA202512224199

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2025
- Submitted: December 22, 2025
- Operation: Air carrier
- Aircraft: [N103US](https://openairdocs.org/aircraft/N103US), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 861
- Aircraft time: 69,483 hours, 40,454 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: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202512224199

## Discrepancy

AIRCRAFT WAS GROUNDED: SEAT 19ABC O2 MASK COMPARTMENT WILL NOT RELEASE WHILE PERFORMINGTHE DROP TEST IAW AMM 35-23-00. AINTENANCE OPENED AND INSPECTED MASK CONTAINER AT 19ABC. REPACKED AND STOWED MASKS AS NEEDED, PER AMM 35-21-43 AND PERFORMED SATISFACTORY DROP TEST IAW AMM 35-23-00.

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