# SDR HEEA979184

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N4180F](https://openairdocs.org/aircraft/N4180F), registered now
- Make and model: Bell 206L-3
- Registry model: [Bell 206L-3](https://openairdocs.org/model/bell-206l-3) (OpenAirDocs)
- Aircraft serial: 51469
- System (JASC): [3452 · ATC Transponder System](https://openairdocs.org/jasc/3452)
- Part: Transceiver,
- Part number: 066106200
- Condition: Intermittent
- Location: Cockpit
- Component: KT76
- 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/HEEA979184

## Discrepancy

PILOT REPORTED IT WORKED INTERMITTENTLY. FOUND FREQUENCY OUT OF SPECS.  ADJUSTED TO SPECS.  WHEN UNIT WAS HEATED, FREQUENCY WENT OUT OF TOLERANCE AGAIN.  REPLACED CAVITY OSCILLATOR V101.  REPAIRED PROBLEM.  COOKED UNER HEAT LAMP, VIBRATED AND PUT IN FREEZER.  UNIT BENCH CHECK GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.