# SDR 2002FA0001078

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2002
- Submitted: September 19, 2002
- Operation: General aviation
- Aircraft: [N146Z](https://openairdocs.org/aircraft/N146Z), registered now
- Make and model: Beech 58P
- Registry model: [Beech 58P](https://openairdocs.org/model/beech-58p) (OpenAirDocs)
- Aircraft serial: TJ426
- Engine: Cont TSIO520*
- System (JASC): [7603 · Power Lever](https://openairdocs.org/jasc/7603)
- Part: Throttle Control
- Part number: 640791A5
- Part serial: 70229402
- Condition: Binding
- Location: Left Engine
- Part time: 100 hours, 100 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2002FA0001078

## Discrepancy

PILOT REPORTED BINDING OF LEFT ENGINE THROTTLE.  INVESTIGATION REVEALED GALLING OF MIXTURE ADJUSTMENT ROD WHERE IT ATTACHES TO THE THROTTLE LEVER, WITH A SIGNIFICANT AMOUNT OF TRANSFER OF METAL FROM THE LEVER TO THE ROD, PREVENTING FULL THROTTLE MOVEMENT.  THIS THROTTLE LEVER APPEARS TO BE MADE FROM A MATERIAL DIFFERENT FROM WHAT WAS PREVIOUSLY USED.

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