# SDR UALA2009092202995

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2009
- Submitted: September 28, 2009
- Operation: Air carrier
- Aircraft: [N775UA](https://openairdocs.org/aircraft/N775UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26947
- Aircraft time: 56,625 hours, 10,434 cycles
- Engine: Pwa PW4077
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Microphone
- Condition: Malfunctioned
- Location: Oxygen Mask
- Component: Control Panel
- Component part number: 570111
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009092202995

## Discrepancy

OXYGEN MASK PROBLEM CREW COMMENTS:  CAPT QUICK DON O2 MIC-SPEAKER INOP.  REPLACED AUDIO CONTROL PANEL ON CAPTAIN'S SIDE.  OXYGEN MASK SPEAKER CHECKS OKAY.  ALSO ACP SYSTEM TEST, CHECKS OKAY.

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