Aug 3, 1997
Accident
Substantial CASTLE ROCK, CO
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
A partial loss of engine power due to a cylinder exhaust valve jammed in the open position from excessive carbon deposits. A factor was the lack of suitable terrain on which to make a forced landing.
NTSB FTW97LA298