# SDR 2008UALA02899

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2008
- Submitted: July 1, 2008
- Operation: Air carrier
- Aircraft: [N306UA](https://openairdocs.org/aircraft/N306UA), registered now
- Make and model: Boeing 737322
- Aircraft serial: 23667
- Aircraft time: 61,025 hours, 35,837 cycles
- Engine: Cfmint CFM563C1
- System (JASC): [2350 · Audio Integrating System](https://openairdocs.org/jasc/2350)
- Part: Microphone
- Condition: Inoperative
- Location: O2 Mask
- Component: O2 Mask
- Component part number: MC1025154
- 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/2008UALA02899

## Discrepancy

F/O O2 MASK MIC DOES NOT WORK.  SUSPECT FAULTY OXYGEN MASK.  REPLACED MASK IAW MM35-12-86.  AC OK FOR SERVICE.

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