# SDR AALA20131003002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2013
- Submitted: November 20, 2013
- Operation: Air carrier
- Aircraft: [N973AN](https://openairdocs.org/aircraft/N973AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29548
- Aircraft time: 36,256 hours, 14,876 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: MF20003
- Part serial: 82077
- Condition: Defective
- Location: Cockpit
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20131003002

## Discrepancy

CAPTAIN`S OXYGEN MASK MICROPHONE INTERMITTENT.  R & R CAPTAIN`S OXYGEN MASK ASSEMBLY OPERATIONS CHECKED NORMAL

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