# SDR AUS20011382

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2001
- Submitted: February 5, 2002
- Operation: General aviation
- Make and model: Cessna R172K
- Registry model: [Cessna R172K](https://openairdocs.org/model/cessna-r172k) (OpenAirDocs)
- Engine: Cont IO360K
- Propeller: Mcauly 2A34C203
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Exhaust Valve
- Part number: 646640
- Condition: Worn
- Location: Reciprocating En
- Part time: 1,459 cycles
- Component: Reciprocating En, Cont, IO360K
- Stage of operation: NR
- Nature of condition: E
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AUS20011382

## Discrepancy

(AUS) EXHAUST VALVE GUIDE WORN EXCESSIVELY. INVESTIGATION FOUND SPRINGCAP RIDING UP ON VALVE AND CONTACTING ROCKER ARM DUE TO WORNCOLLETS.

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