What was found
VALVE STEM CRACKED JUST BELOW HEAD OF VALVE. THE HEAD OF THE VALVE FALLING INTO THE CYLINDER CAUSED MAJOR DAMAGE TO THAT CYLINDER. SUBMITTER SUGGESTS DETONATION MAY HAVE BEEN A FACTOR. NOTE: AUTO FUEL WAS BEING USED.
- Difficulty date
- July 31, 1995
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N95207
- Make and model
- Piper PA28140
- Aircraft serial
- 2825842
- Engine
- Lyc O320E2A
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Valve
- Part number
- LW190001
- Condition
- Failed
- Location
- Engine
- Part time
- 1,311 hours
- Stage of operation
- NR
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.