NTSB Identification: LAX95LA151.
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Accident occurred Monday, April 03, 1995 in TURLOCK, CA
Probable Cause Approval Date: 09/24/1995
Aircraft: ANDRIS KR2, registration: N22955
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 AIRCRAFT HAD NOT BEEN INSPECTED OR SIGNED OFF BY THE FAA, NOR HAD AN EXPERIMENTAL AIRWORTHINESS CERTIFICATE BEEN ISSUED. THE PILOT'S FLIGHT RECORDS REVEALED THAT HIS LAST LOGGED FLIGHT WAS IN 1985, AND HIS LAST BIENNIAL FLIGHT REVIEW WAS IN 1984. THE PILOT TOLD FAA INSPECTORS THAT AT FIRST HE WAS JUST GOING TO DO ANOTHER HIGH SPEED TAXI TEST, 'BUT THE DAY WAS SO NICE' THAT HE DECIDED TO FLY. THE AIRCRAFT DEPARTED RUNWAY 30 AND WAS ON CROSSWIND WHEN THE PROPELLER SEPARATED FROM THE CRANKSHAFT. THE PILOT TURNED BACK TOWARDS THE RUNWAY, BUT HAD INSUFFICIENT ALTITUDE TO MAKE THE RUNWAY AND COLLIDED WITH HIGH-TENSION POWER LINES. THE FAA INSPECTOR REPORTED THAT THE PROPELLER IS ATTACHED TO A FLANGE, WHICH IN TURN IS SECURED TO THE VOLKSWAGEN ENGINE CRANKSHAFT BY MEANS OF A BOLT AND COTTER PIN. THE PIN WAS FOUND SHEARED AND THE BOLT BACKED OUT. EVIDENCE OF FULL THREAD ENGAGEMENT AT SOME TIME WAS NOTED ON THE BOLT. THE INSPECTOR STATED THAT 5.7 HOURS OF GROUND RUN AND TAXI TESTS HAD BEEN COMPLETED BY THE PILOT PRIOR TO THIS FIRST FLIGHT.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: the failure of the propeller attach bolt retaining cotter pin, and the pilot/builder's inadequate preflight inspection of the aircraft prior to the attempted flight. Full narrative available
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