As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT OF FLIGHT, THE CREW REPORT THE LANDING GEAR HANDLE LIGHT WAS FLICKERING WITH THE HANDLE IN THE UP POSITION. THE CREW PERFORMED AN AIR-TURN-BACK TO DEPARTURE AIRPORT. MECHANIC ADJUSTED THE LT MAIN UPLOCK SWITCH AND RETURNED THE AC TO SERVICE. (K)