# SDR VJ32003F00021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 24, 2003
- Submitted: February 4, 2003
- Operation: Air carrier
- Aircraft: N862AF
- Make and model: Grob G 120A
- Registry model: [Grob G 120A](https://openairdocs.org/model/grob-werke-g-120a) (OpenAirDocs)
- Aircraft serial: 85002
- System (JASC): [7714 · Engine RPM Indicating System](https://openairdocs.org/jasc/7714)
- Part: Indicator
- Condition: Erratic
- Location: Engine Rpm
- Part time: 701 hours
- Component: Cluster Gauge
- Component part number: A0450REVC
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VJ32003F00021

## Discrepancy

THE RPM INDICATOR IS ERRATIC AND STICKS DURING FLIGHT.  PROBABLE CAUSE MAY BE INTERNAL MECHANISM FAILING.

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