NTSB Identification: SEA82FYM10
14 CFR Part 137: Agricultural
Accident occurred Wednesday, February 24, 1982 in WASCO, OR
Probable Cause Approval Date: 02/24/1983
Aircraft: WEATHERLY 201C, registration: N9243W
Injuries: 1 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE PILOT REPORTED THAT DURING TAKEOFF, THE ENGINE DID NOT MAINTAIN FULL POWER. WHILE LANDING IN A RESIDENTIAL AREA, THE AIRCRAFT STRUCK A TELEPHONE WIRE AND THREE TREES. AN EXAMINATION OF THE ENGINE REVEALED NO OBVIOUS DEFECTS THAT WOULD CAUSE A LOSS OF POWER. THE THROTTLE QUADRANT, PN 40380, HAD SEVERAL DISCREPANCIES. THERE WAS NO EVIDENCE OF LUBRICATION OF THE QUADRANT, AND THE MOVEMENT OF THE LEVERS WAS STIFF. THE THROTTLE, PROPELLER CONTROL, AND MIXTURE LEVERS WERE VERY CLOSE TOGETHER, AND MOVEMENT OF ONE LEVER WOULD CAUSE RUBBING ON THE LEVER NEXT TO IT. THE QUADRANT HOUSING HAD EVIDENCE OF THE LEVERS RUBBING ON THE BOTTOM OF THE HOUSING. THE MIXTURE LEVER SHOWED EVIDENCE OF EXTENSIVE WEAR AND ELONGATION OF THE ATTACH HOLE. THE CABLE ATTACH HOLE WAS WORN COMPLETELY THROUGH THE END OF THE LEVER, AND THE MIXTURE CABLE WAS NOT ATTACHED.

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

MIXTURE CONTROL..BINDING(MECHANICAL)

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

MAINTENANCE,LUBRICATION..INADEQUATE..OTHER MAINTENANCE PERSONNEL

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

MIXTURE CONTROL..WORN

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

MIXTURE CONTROL..SEPARATION


Contributing Factors

OBJECT..WIRE,TRANSMISSION


Contributing Factors

OBJECT..TREE(S)

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