As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - AFTER TAKEOFF AND LANDING GEAR RETRACTION, THE LEFT MAIN LANDING GEAR UNSAFE ILLUMINATED AND REMAINED ON WITH GEAR RETRACTED. CREW RECYCLED THE GEAR WITH NO HELP. FLIGHT CONTINUED AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LEFT MAIN LANDING GEAR UPLOCK SENSOR PER MM 32-61-21. SYSTEM OPERATIONAL CHECK GOOD. (M)