NTSB Identification: LAX01LA288.
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Accident occurred Friday, August 24, 2001 in Camarillo, CA
Probable Cause Approval Date: 05/28/2002
Aircraft: Ryan ST3KR, registration: N48742
Injuries: 2 Uninjured.
NTSB investigators may have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
The pilot reported he was giving rides in the antique aircraft to thank museum volunteers of the Confederate Air Force squadron. Before takeoff, the aircraft was fueled to capacity, which he reported was sufficient for 2 hours endurance. About 20 minutes after takeoff, while in normal cruise flight and without warning, the engine lost power. During the ensuing forced landing in an open field, the landing gear struck a culvert and a wing was damaged. Post-accident inspection revealed that a clevis on the throttle linkage separated from the rod at the cockpit control quadrant. The operator, a (civilian) military aircraft museum, believed that the throttle linkage had been field fabricated, or refurbished and installed during restoration of the World War II-era airplane, 358 flight hours prior. A rivet, intended to lock the clevis to the shaft, was never installed during the fabrication/reassembly of the linkage, and the absence of the rivet was not detected during subsequent annual inspections.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The improper fabrication/reassembly and inspection of the engine throttle control linkage during aircraft restoration by the operator, and the failure of the operator's inspection personnel to detect the error during subsequent annual inspections. Full narrative available
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