# SDR AU000756

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 29, 2000
- Submitted: October 3, 2000
- Operation: General aviation
- Make and model: Cessna U206G
- Registry model: [Cessna U206G](https://openairdocs.org/model/cessna-u206g) (OpenAirDocs)
- Engine: Cont IO520F
- Propeller: Mcauly D3A32C90
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Gear
- Part number: 631845
- Condition: Cracked
- Location: Engine
- Part time: 2,150 cycles
- Component: Engine, Cont
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU000756

## Discrepancy

(AUS) CAMSHAFT GEAR P/N 631845 CRACKED.  FUEL PUMP DRIVE GEAR P/N 535662 CRACKED AND TEETH BADLY WORN.  FUEL CONTROL UNIT P/N 629703-2 HAD O-RING SEAL MISSING FROM MIXTURE SHAFT.   SUBMITTER SUSPECTED CAUSED BY INCORRECT MESHING OF FUEL PUMP DRIVE GEAR P/N 535662 AND FUEL PUMP GEAR P/N 631684, AND/OR INSUFFICIENT LUBRICATION OF FUEL PUMP GEAR P/N 631684 AND FUEL PUMP LOWER HOUSING INSIDE DIAMETER.  (X)

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