As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER TAKEOFF CREW HAD TO MAKE A COUPLE OF ATTEMPTS TO RETRACT GEAR. CREW ADVISED THAT THEY HAD TO USE THE LANDING GEAR OVER-RIDE TO GET THE GEAR TO RETRACT. TROUBLESHOOTING CONCLUDED A FAULTY GEAR SELECTOR, SELECTOR REPLACED. TEST FLIGHT WAS SUCCESSFUL, ACFT RETURNED TO SERVICE.