# SDR FDEA201507162269

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 2015
- Submitted: July 20, 2015
- Operation: Air carrier
- Aircraft: [N978FD](https://openairdocs.org/aircraft/N978FD), registered now
- Make and model: Boeing 757236
- Aircraft serial: 24119
- Aircraft time: 522 hours, 22,900 cycles
- System (JASC): [2311 · UHF Communications System](https://openairdocs.org/jasc/2311)
- Part: Circuit Breaker
- Condition: Tripped
- Location: Cockpit
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201507162269

## Discrepancy

CAPTAIN'S O2 MASK DOES NOT TRANSMIT.  PDX R RESET COMM CB AT CAPTAIN`S O2 BOX IAW AMM 35-11-4.  OPERATIONS CHECKED NORMAL.

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