NTSB Identification: ATL89LA096.
The docket is stored on NTSB microfiche number 39010.
Accident occurred Saturday, March 04, 1989 in BLOUNTVILLE, TN
Probable Cause Approval Date: 03/29/1991
Aircraft: CESSNA 152, registration: N25524
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 REPORTED THAT ABOUT 10 MINUTES AFTER TAKEOFF, HE WAS IN CRUISE FLT AT 3,000 FT WHEN HIS ENGINE DEVELOPED A MISS AND BEGAN TO RUN ROUGH. AFTER EMERGENCY PROCEDURES WHICH INCLUDED APPLYING CARB HEAT, THERE WAS A SLIGHT IMPROVEMENT IN ENGINE PERFORMANCE. SHORTLY, THE ENGINE QUIT COMPLETELY AND THE PILOT WAS UNABLE TO RETURN TO THE DEPARTURE AIRPORT. DURING THE FORCED LANDING ATTEMPT, THE AIRPLANE COLLIDED WITH A UTILITY POLE AND POWER LINE AT OR NEAR STALL SPEED. THE PILOT AND HIS PASSENGER RECEIVED MINOR INJURIES. AFTER RECOVERY OF THE AIRPLANE, THE ENGINE WAS STARTED AND OPERATED SATISFACTORILY. THE EXISTING AMBIENT ATMOSPHERIC CONDITIONS WERE FAVORABLE FOR THE FORMATION OF CARBURETOR ICE.

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

CARBURETOR ICE. THE PILOT FAILED TO APPLY CARBURETOR HEAT IN A TIMELY AND ADEQUATE MANNER. THIS FAILURE RESULTED IN THE ACCUMULATION OF ICE TO A POINT OF FAILURE OF THE ENGINE WHICH ELIMINATED THE HEAT NECESSARY TO REMOVE THE ICE.

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