As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED- LANDING GEAR WOULD NOT RETRACT. MAINTENANCE- MECHANIC INSPECTED LANDING GEAR AND INSTALLED LANDING GEAR LOCKS FOR FERRY FLIGHT TO HOME BASE. CLEANED PCB GROUNDS, OHM CHECKED LANDING GEAR CONTROL AND TIME DELAY CONTROL WIRING, NO DEFECTS. REPLACED CIRCUIT BREAKER 12 FOR TIME DELAY PCB. FUNCTIONAL CHECK OF LANDING GEAR SUCCESSFUL.