# SDR CALA2013100991920

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2013
- Submitted: October 10, 2013
- Operation: Air carrier
- Aircraft: [N225UA](https://openairdocs.org/aircraft/N225UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30554
- Aircraft time: 49,496 hours, 5,971 cycles
- Engine: Pwa PW40903
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Condition: Leaking
- 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/CALA2013100991920

## Discrepancy

CREW O2 NOW 980 SUSPECT POSSIBLE LEAK.  FOUND FIRST OBSERVERS SEAT CREW MASK LEAKING. REPLACED MASK.  ALL ACCESSIBLE FITTINGS IN NOSE TUNNEL FROM BOTTLE TO FLOOR LINE & OTHER CREW MASKS WERE LEAK CHECKED, NO ADDITIONAL LEAKS FOUND.

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