# SDR AU990416035

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 22, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Piper PA-38-112
- Registry model: [Piper PA-38-112](https://openairdocs.org/model/piper-pa-38-112) (OpenAirDocs)
- Engine: Lyc O235L2C
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Rocker Boss
- Part number: 05K21114
- Condition: Worn
- Location: Cylinder
- Part time: 400 hours
- Component: Lyc, O235L2C
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU990416035

## Discrepancy

(AU) INSPECTION FOUND THERE WAS EXCESSIVE ROCKER SHAFT TO ROCKER SHAFT BOSS CLEARANCE ON THE INTAKE SIDE OF TWO SEPARATE CYLINDERS. THIS CLEARANCE WAS MEASURED AT 0.008 INCH.

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