# SDR HEEA084621

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2003
- Submitted: February 21, 2003
- Operation: Air carrier
- Aircraft: N2149S
- Make and model: Bell 412
- Registry model: [Bell 412](https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Aircraft serial: 36002
- Aircraft time: 13,726 hours
- System (JASC): [2312 · VHF Communications System](https://openairdocs.org/jasc/2312)
- Part: Transceiver
- Part number: 064102300
- Part serial: 5659
- Condition: Failed
- Location: Vhf System
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HEEA084621

## Discrepancy

VHF TRANCEIVER WILL NOT TRANSMIT. REPLACED BAD Q109 AND Q110 TRANSISTORS.  REPAIRED PROBLEM.  ALIGNED TRANSMITTER AND ADJUSTED C/N SQUELCH AND CARRIER SQUELCH.  REPLACED BAD RF CONNECTOR.  REMOVED CORROSION FROM CHASSIS.  BENCH CHECK GOOD.

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