NTSB Identification: MIA83LA020
14 CFR Part 91: General Aviation
Accident occurred Sunday, October 24, 1982 in FT. MYERS, FL
Probable Cause Approval Date: 10/24/1983
Aircraft: CESSNA 172, registration: N739WY
Injuries: 1 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 THAT DURING HIS SOLO X-COUNTRY THE THROTTLE BECAME STUCK SEVERAL TIMES ENROUTE. WHILE APPROACHING FT. MYERS HE RETARDED THE THROTTLE BUT WAS UNABLE TO ADVANCE IT AGAIN. UNABLE TO MAINTAIN ALTITUDE, THE PLT MADE A FORCED LANDING. POST EXAMINATION REVEALED THAT ALL ENGINE CONTROLS WERE FREE TO MOVE & HAD FULL TRAVEL IN BOTH DIRECTIONS. THE FRICTION KNOB ON THE THROTTLE WAS SCREWED COMPLETELY OUT, BUT DID NOT HAMPER FULL USE OF THE THROTTLE. THE THROTTLE CONTROL MOUNT NUT WAS SECURED TO THE INSTRUMENT PANEL & WAS NOT LOOSE. HOWEVER, THE THROTTLE LINKAGE WAS HOOKED UP AT THE CARBURETOR AT THE TOP MOUNT HOLE WHICH CAUSED THE THROTTLE CONTROL TO HAVE ONLY ABOUT 1-5/8 IN FULL TRAVEL FROM IDLE TO FULL POWER. THIS COMPARES TO 3 IN OR BETTER ON ANY OTHER C-172 INSTALLATION. THIS WOULD CAUSE RAPID POWER CHANGES WITH ONLY SMALL CHANGES OF THROTTLE CONTROL.

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

THROTTLE/POWER CONTROL..IMPROPER USE OF..PILOT IN COMMAND


Contributing Factors

THROTTLE/POWER LEVER,LINKAGE..INCORRECT


Contributing Factors

OBJECT..TREE(S)

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