NTSB Identification: FTW85LA290.
The docket is stored on NTSB microfiche number 30387.
Accident occurred Wednesday, July 17, 1985 in GUTHRIE, OK
Aircraft: CESSNA 177B, registration: N20164
Injuries: 2 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE PLT STATED HE LOST ENG POWER SHORTLY AFTER TAKEOFF AND DURING INITIAL CLIMB. HE ELECTED TO GO INTO THE TREES DUE TO LACK OF ALTITUDE TO ALLOW A MORE SUITABLE LANDING AREA. AN ENG EXAMINATION DISCLOSED THAT THE NO. FOUR EXHAUST VALVE WAS STUCK OPEN DUE TO A CARBON BUILD UP ON THE ROUGH SURFACE INSIDE THE VALVE GUIDE.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

ENGINE ASSEMBLY,VALVE,INTAKE..JAMMED

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

MAINTENANCE..IMPROPER..OTHER MAINTENANCE PERSONNEL

Index for Jul1985 | Index of months