# SDR 2008UALA03176

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 3, 2008
- Submitted: July 1, 2008
- Operation: Air carrier
- Aircraft: [N224UA](https://openairdocs.org/aircraft/N224UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30225
- Aircraft time: 24,948 hours, 3,188 cycles
- Engine: Pwa PW4090
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: MXP4023
- Condition: Faulty
- Location: Cockpit
- Stage of operation: IN
- How discovered: O
- Nature of condition: W
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2008UALA03176

## Discrepancy

OXYGEN MASK PROBLEM.  SUSPECT FAULTY MASK BOX ASSEMBLY.  REPLACED MASK BOX ASSEMBLY PER MM 35-11-18.  AC OK FOR SERVICE.

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