Incident
The airplane experienced a complete electrical system failure during cruise flight. Upon becoming aware of the failure, the pilot shut down all electrical items. He decided to make a precautionary landing and diverted to an alternate airport.
Pilot Actions
As the airplane neared the alternate airport, the pilot slowed to normal gear extension speed and lowered the landing gear using the automatic switch. He felt the gear extend. However, because no landing gear lights were illuminated, he could not verify that the gear was in the locked position. He then conducted the emergency gear extension checklist. The pilot noted that the airspeed and power were consistent with what he associated with the landing gear being in the down position.
Landing and Collapse
Touchdown was normal. During the landing rollout, the nose and left main landing gear collapsed. The left wing struck a taxi light. Prior to exiting the airplane, the pilot shut off the master switch.
Recovery and Inspection
During recovery, the airplane was raised on jacks, and the landing gear was extended with no discrepancies noted. Subsequent repair work included a landing gear extension/retraction test, which revealed no system anomalies. The inspection of the airplane was unable to determine the cause of the electrical failure.