Service difficulty report · Key

Difficulty date
October 19, 2009
Submitted
December 18, 2009
Operation
General aviation
Engine
Lyc O320*
Part
Key
Part number
AEL1007760009
Condition
Pulled
Location
Valve Train
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

VALVE KEYS (PN 60009) ARE PULLED THRU SEAT AEL 10077. ROCKER ARM TIP IS DESTROYED, HOLE WORN THRU VALVE COVER FROM UPPER SPRING SEAT. KEYS WERE STUCK ON VALVE STEM. VALVE STEM IS DAMAGED AND WILL NOT PASS THRU VALVE GUIDE.