# SDR 97ZZZX1618

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [Alticor Inc, repair station AMCR163C](https://openairdocs.org/faa-repair-station/AMCR163C/alticor-inc.md) (OpenAirDocs)
- Aircraft: [N254DV](https://openairdocs.org/aircraft/N254DV), registered now
- Make and model: Amd FALCON50MYST
- Aircraft serial: 85
- System (JASC): [3455 · Automatic Direction Finder (ADF) System](https://openairdocs.org/jasc/3455)
- Part: Control Head
- Part number: G686201
- Condition: Shorted
- Location: Dual Adf
- Stage of operation: IN
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX1618

## Discrepancy

DURING COCKPIT PREFLIGHT, CREW HEARD ADF NR 1 CIRCUIT BREAKER TRIP.  WITHIN A FEW MOMENTS, THE ODOR OF SOMETHING BURNING WAS DETECTED.  REMOVING THE ADF HEAD, THE UNIT SMELLED BURNT.  THIS SAME S/N HEAD EXPERIENCED THE SAME THING A YEAR AND A HALF AGO, (545 FLT HRS).  PREVIIOUS REPAIR REPORT INDICATED A FAILED POWER SUPPLY BOARD, P/N 701-0314-01.

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