What was found
EDGE OF INTAKE VALVE APPEARS TO BE BREAKING OFF. EDGE IS ALSO CRACKED IN SEVERAL PLACES. VALVE FACE HAS PITTING ON ENTIRE SEALING SURFACE. METAL ON VALVE APPEARS TO HAVE CONTAMINATES UPON INVESTIGATION WITH 30X MAGNIFIER.
- Difficulty date
- May 14, 1996
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N5120H
- Make and model
- Cessna 152
- Aircraft serial
- 15284063
- Engine
- Lyc O235L2C
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Valve
- Part number
- SL17236M294Z
- Condition
- Pitted
- Location
- Cyl Intake
- Part time
- 287 hours
- Stage of operation
- IN
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.