# SDR USAA2012091900008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2012
- Submitted: September 19, 2012
- Operation: Air carrier
- Aircraft: N548UW
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4898
- Aircraft time: 3,312 hours, 1,186 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: MF20534
- Part serial: SE61657
- Condition: Broken
- Location: Cockpit
- Part time: 3,312 hours, 1,186 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: S
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2012091900008

## Discrepancy

CAPTAIN'S BOOM MIC TRANSMITS WEAK.  FOUND MASK HAS STUCK MICROPHONE.  REMOVED AND REPLACED CAPTAIN'S MASK IAW AIRBUS MAINTENANCE MANUAL 35-12-41.

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