# SDR 2008UALA05632

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 2008
- Submitted: September 26, 2008
- Operation: Air carrier
- Aircraft: N375UA
- Make and model: Boeing 737322
- Aircraft serial: 24640
- Aircraft time: 52,983 hours, 36,850 cycles
- Engine: Cfmint CFM563C1
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Transceiver
- Part number: 6225219120
- Condition: Faulty
- Location: Oxygen Mask
- 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/2008UALA05632

## Discrepancy

FIRST OBSERVERS OXYGEN MASK WILL NOT TRANSMIT WITH MASK ON.  FOUND NR 3 TRANSCEIVER FOUND FAULTY.  REPLACED TRANSCEIVER.  OP CHECKS OKAY.

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