# SDR HEEA0011859

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N401PH](https://openairdocs.org/aircraft/N401PH), registered now
- Make and model: Bolkms BK117A3
- Aircraft serial: 7050
- System (JASC): [2312 · VHF Communications System](https://openairdocs.org/jasc/2312)
- Part: Transceiver
- Part number: 40001452502
- Condition: Failed
- Location: Cockpit
- Component: RT138F
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HEEA0011859

## Discrepancy

TRANSCEIVER WILL NOT TRANSMIT. FOUND VR3 VOLTAGE REGULATOR ON VCO CONTROL BOARD INOPERATIVE.  REPLACED VOLTAGE REGULATOR.  REPAIRED UNIT.  BENCH CHECK GOOD.

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