As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON DEPARTURE THE FLIGHT CREW REPORTED THAT THE LANDING GEARS COULD NOT BE RETRACTED SO THEY RETURNED AND LANDED. MAINTENANCE REPORTED THAT THE RIGHT MAIN LANDING GEAR INBOARD PROXIMITY SENSOR WAS FOUND CRACKED, POSSIBLE CAUSE SUSPECTED TO BE GRAVEL DAMAGE. THE PROXIMITY SENSOR WAS REPLACED, RETRACTION TESTS ACCOMPLISHED AND THE AIRCRAFT WAS RETURNED TO SERVICE.