# SDR HEEA060457

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N911EB
- Make and model: Bolkms BO105S
- Aircraft serial: S812
- System (JASC): [2312 · VHF Communications System](https://openairdocs.org/jasc/2312)
- Part: Control Unit
- Part number: 4000106000
- Condition: Malfunctioned
- Location: Cockpit
- 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/HEEA060457

## Discrepancy

CONTROL UNIT TRANSMITS CONSTANTLY.  PERFORMED PRELIMINARY INSPECTION AND FOUND THUMBWHEEL INTERMITTENT.

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