# SDR AALA202202177837

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 13, 2022
- Submitted: February 17, 2022
- Operation: Air carrier
- Aircraft: [N905AU](https://openairdocs.org/aircraft/N905AU), registered now
- Make and model: Airbus A300*
- Aircraft serial: 7700
- Aircraft time: 14,099 hours, 5,378 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Container
- Part number: 22C15L120100009
- Condition: Inoperative
- Location: Zone 200 - Fuse
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202202177837

## Discrepancy

AIRCRAFT WAS GROUNDED: WHEN PERFORMING OXYGEN MASK OPERATIONAL CHECK THE FLIGHT ATTENDANTS OXYGEN MASK AT DOOR 4R FAILED TO OPEN AND DROP. REPLACED OXYGEN MASK CONTAINER / MODULE PER AMM 35-21-41 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.

---
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.