As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER TAKEOFF FOR FIRST FLIGHT OF THE DAY, THE CREW WHERE UNABLE TO MOVE THE LANDING GEAR SELECTOR HANDLE TO THE GEAR UP POSITION. THE AIRCRAFT RETURNED TO THE AIRPORT AND LANDED WITHOUT FURTHER INCIDENT. UPON INVESTIGATION BY MAINTENANCE, IT WAS FOUND THAT THERE WAS ICE ACCUMULATION IN THE LANDING GEAR SELECTOR LINKAGE LOCATED IN THE NOSE WHEEL WELL.