# SDR UALA2011030801136

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2011
- Submitted: March 17, 2011
- Operation: Air carrier
- Aircraft: [N821UA](https://openairdocs.org/aircraft/N821UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 944
- Aircraft time: 42,402 hours, 16,800 cycles
- Engine: Iae V2522A5
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: MC1019151
- Condition: Not Seated
- Location: Cockpit
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011030801136

## Discrepancy

SLOW LEAK OF COCKPIT OXYGEN HAS RESUMED. SYS LOSS OF 140 PSI IN 3 FLT HRS...1770 TO 1630. FOUND SLIGHT O2 LEAK F-O MASK QUICK DISCONNECT. RESEATED MASK, NO LEAKS NOTED. SERVICE CREW O2 TO 1900 PSI.

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