# SDR DALA2025102707835

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 24, 2025
- Submitted: October 27, 2025
- Operation: Air carrier
- Aircraft: [N351NB](https://openairdocs.org/aircraft/N351NB), registered now
- Make and model: Airbus A319-114
- Registry model: [Airbus A319-114](https://openairdocs.org/model/airbus-a319-114) (OpenAirDocs)
- Aircraft serial: 1820
- Aircraft time: 52,781 hours, 27,738 cycles
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Microphone
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025102707835

## Discrepancy

OBSERVER'S O2 MASK MICROPHONE INOPERATIVE.   RESEATED MICROPHONE CONNECTOR ON OBSERVER O2 MASK OPS NORMAL. (7710498).

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