# SDR UALA2011052602580

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2011
- Submitted: June 22, 2011
- Operation: Air carrier
- Aircraft: [N490UA](https://openairdocs.org/aircraft/N490UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1728
- Aircraft time: 30,168 hours, 13,384 cycles
- Engine: Iae V2527A5
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: MXP80111600U
- Part serial: 26286
- Condition: No Test
- Location: Cockpit
- 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/UALA2011052602580

## Discrepancy

CAPTAIN'S O2 MASK NOT TESTING.  SWAPPED WITH SECOND OBSERVER. CAPT O2 CHECKED GOOD. REMOVED AND REPLACED SECOND OBSERVER O2 MASK PER AMM.

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