What was found
THE LANDING GEAR WOULD NOT FULLY EXTEND OR RETRACT WITH THE ELECTRICAL SYSTEM. THE EMERGENCY SYSTEM WAS ACTUATED AND DID NOT EXTEND THE GEAR. IT WAS DETERMINED THE LANDING GEAR MOTOR FAILED TO FUNCTION UNDER THE LOAD REQUIRED TO ACTUATE THE GEAR. AFTER EXTENSIVE INSP AND OPERATION OF THE EMERGENCY GEAR SYSTEM, IT WAS UNDETERMINED AS TO WHY THE GEAR FAILED TO EXTEND. IT IS SPECULATED EMERGENCY GEAR EXT WAS ACTUATED WITH THE GEAR PARTIALLY EXTENDED. THIS IS BASED ON THE FACT WHEN THE AIRCRAFT WAS JACKED FOR RECOVERY, THE LINKAGE WAS RELEASED BY THE MECHANIC AND THE GEAR EXTENDED FULLY.