As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE CREW SELECTED GEAR DOWN ON APPROACH AND THE GEAR FAILED TO EXTEND. THE CREW ELECTED TO OVERSHOOT AND RETURN TO THEIR MAIN BASE. ON APPROACH TO THE MAIN BASE AT LOWER ALTITUDE AND WARMER TEMPERATURE, THE GEAR EXTENDED NORMALLY AND THE AIRCRAFT WAS LANDED SAFELY. MAINTENANCE COULD FIND NO FAULT WITH THE LANDING GEAR SYSTEM.