Event Summary
While in cruise flight, the pilot of an airplane observed an engine vibration. Shortly thereafter, the engine experienced a total loss of power, necessitating a forced landing.
Emergency Landing
The pilot and a passenger attempted to extend the landing gear using the emergency gear extension system. Before touchdown, the pilot confirmed that the left main and nose landing gear were down and locked. However, during the landing roll on the highway, the right main landing gear collapsed, causing the airplane to veer off the roadway and into a ditch.
Post-Accident Examination
Following the accident, the Federal Aviation Administration (FAA) conducted an examination of the engine and found that the crankshaft had fractured. No other anomalies were discovered.