# SDR DALA2020100603295

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2020
- Submitted: October 6, 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: 50,915 hours, 26,627 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Condition: No Test
- Location: Cabin
- 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/DALA2020100603295

## Discrepancy

DURING ACCOMPLISHMENT OF AMDS WORK CARD THE PSU OXYGEN MASK DOOR AT SEATS LT 1, 14, 24, 29 AND RT 1, 17, 20, 28 FAILED TO OPEN DURING STEP 1 TEST.  CORRECTIVE ACTION: AMDS WORK CARD STEP 2, 3, AND 6 THROUGH 12 WERE ACCOMPLISHED WHICH RESTORED AND VALIDATED PROPER OPERATION OF ALL PASSENGER PSU'S.

---
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.