# SDR UALA2013030701367

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2013
- Submitted: March 13, 2013
- Operation: Air carrier
- Aircraft: [N850UA](https://openairdocs.org/aircraft/N850UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1653
- Aircraft time: 38,716 hours, 15,900 cycles
- Engine: Iae V2522A5
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: MF20534
- Part serial: 1612
- Condition: No Test
- Location: First Officers
- 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/UALA2013030701367

## Discrepancy

FIRST OFFICER`S OXYGEN MASK DOES NOT TEST CORRECTLY WITH PRESS TO TEST BUTTON.   REPLACED MASK & STOWAGE BOX IAW MM 35-12-41-000-001A AND MM 35-12-41-400-001-A AND REPLACED FULL FACE QUICK DONNING O2 MASK IAW MM 35-12-41- 400-002-A.  LEAK AND OPS CHECKED GOOD.

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