Cessna 310/T310C
Flight Crew Instrument; Flight Crew Flight Instructor; Flight Crew Commercial; Flight Crew Multiengine
Flight Crew Last 90 Days 145; Flight Crew Total 840; Flight Crew Type 1
Aircraft Equipment Problem Critical
Flight Crew Landed in Emergency Condition; Flight Crew Returned To Departure Airport
Aircraft
On departure; partial electrical failure was experienced. Landing gear was unable to fully extend given that the landing gear is electrically driven. The gear was manually extended. I entered the traffic pattern; followed AIM recommended and local lost comm. procedures; and landed uneventfully. The aircraft was towed to the ramp given the uncertainty of the gear being fully locked in the DOWN position.
C310 pilot reports partial electrical failure on departure rendering normal gear extension in operative and causing lost communication. The gear is manually extended and the flight returns to the departure airport using AIM lost communication. procedures.