# SDR HEEA063285

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 10, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N2261D
- Make and model: Bell 412
- Registry model: [Bell 412](https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Aircraft serial: 33076
- System (JASC): [3444 · Ground Proximity System](https://openairdocs.org/jasc/3444)
- Part: Radar Altimeter
- Part number: 066104802
- Condition: Malfunctioned
- Location: Rt Unit
- 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/HEEA063285

## Discrepancy

SYSTEM INDICATOR SURGES FROM ZERO TO FULL SCALE CONTINUOUSLY ABOVE 3,000 FEET ALTITUDE.  PERFORMED PRELIMINARY INSPECTION.   FOUND UNIT OFF FREQUENCY, ADJUSTED TO SPECS WHILE TESTING NEEDLE WOULD BECOME ERRATIC.

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