# SDR 2010FA0000785

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 2010
- Submitted: August 6, 2010
- Operation: General aviation
- Aircraft: N768CR
- Make and model: Beech A36
- Registry model: [Beech A36](https://openairdocs.org/model/beech-a36) (OpenAirDocs)
- Aircraft serial: E3593
- Engine: Cont IO550B
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Camshaft
- Part number: 649322A1
- Condition: Worn
- Location: Engine
- 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/2010FA0000785

## Discrepancy

DURING REMOVAL OF CYLINDER ASSEMBLIES FOR TOP O/H, FOUND SEVERAL LIFTERS SPALLED AND EXCESSIVE CAM LOBE WEAR.  RECOMMEND THAT AD 2010-11-04 AND TCM MSB098A BE REVISED TO INCLUDE ENGINE MFG EARLIER THAN SPECIFIED IN THE AD.  THIS ENGINE WAS BUILT IN 2005.

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