Incident Overview
While in cruise flight, a complete loss of electrical power occurred in the airplane. The pilot initiated a diversion to an alternate airport for landing. During the diversion, the pilot extended the landing gear using emergency extension procedures.
Emergency Extension Procedure
According to the Airplane Pilot Operating Handbook (POH), the emergency landing gear extension procedure requires the pilot to continue pumping the landing gear extension lever until sufficient resistance is felt, ensuring the gear is down and locked. The pilot did not continue pumping to that point.
Landing and Collapse
Upon touchdown, the main landing gear collapsed. A subsequent functional test of the landing gear system revealed no anomalies, confirming that the mechanical system was capable of normal operation.
The incident highlights the importance of adhering strictly to published emergency procedures to ensure proper gear locking.