# SDR AU010220

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 2001
- Submitted: April 4, 2001
- Operation: General aviation
- Make and model: Cessna 310R
- Registry model: [Cessna 310R](https://openairdocs.org/model/cessna-310r) (OpenAirDocs)
- Engine: Cont IO520M
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Collar
- Part number: 629680
- Condition: Mismanufactured
- Location: Engine
- Stage of operation: LD
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU010220

## Discrepancy

(AUS) LT ENGINE CRANKSHAFT OIL TRANSFER COLLAR HAD INCORRECT CLEARANCE. THE MEASURED CLEARANCE WAS 0.0254MM (0.001IN) WITH THE CORRECTMANUFACTURERS LIMITS BEING 0.127MM TO 0.4572MM (0.005IN TO0.0018IN).

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