# SDR 95ZZZX4019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N6836G](https://openairdocs.org/aircraft/N6836G), registered now
- Make and model: Cessna 150L
- Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (OpenAirDocs)
- Aircraft serial: 15072336
- Engine: Cont O200A
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Valve
- Part number: 629404
- Condition: Binding
- Location: Nr 3 Cyl Exh
- Part time: 229 hours
- 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/95ZZZX4019

## Discrepancy

INSPECTION REVEALED VALVE STEM TIGHT IN GUIDE DUE TO EXCESSIVE CARBON BUILD-UP.  AFTER CLEAN-UP OF GUIDE, THE CLEARANCE WAS MEASURED AND DETERMINED TO BE IN LIMITS.  CAUSE OF CARBON BUILD-UP, POSSIBLE RICH CARBURETOR.  INSPECTION OF 3 REMAINING CYLINDERS ON ENGINE REVEALED NO PROBLEMS.  ENGINE TT 4,082.0.  TSM O/H, 979 HOURS.

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