# SDR DALA2020121704129

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2020
- Submitted: December 17, 2020
- Operation: Air carrier
- Aircraft: [N333NB](https://openairdocs.org/aircraft/N333NB), registered now
- Make and model: Airbus A319-114
- Registry model: [Airbus A319-114](https://openairdocs.org/model/airbus-a319-114) (OpenAirDocs)
- Aircraft serial: 1582
- Aircraft time: 51,404 hours, 26,896 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: No Test
- Location: Seat 29 Abc
- 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/DALA2020121704129

## Discrepancy

SEAT 29ABC O2 MASK DIDN`T DEPLOY PERFORMING O2 MASK TASK CARD 2527-01041-02.  CORRECTIVE ACTION: R & R PASSENGER OXYGEN PANEL UNIT, REF A319 AMM 25-25.  REMOVED OXYGEN GENERATOR FROM OLD OXYGEN PANEL & REINSTALLED IT ON NEW OXYGEN PANEL, REF A319 35-21.  OPERATIONS CHECK MASK RELEASE, PER A319 AMM 35-23.  OPERATIONS CHECK GOOD.

---
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.