As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF FOLLOWING GEAR RETRACTION, LEFT MAIN GEAR DOOR LIGHT AND RED DOORS LIGHT REMAINED ILLUMINATED. RECYCLED GEAR SAME RESULTS. *S/D* REMOVED AND REPLACED LEFT MAIN LANDING GEAR DOOR WARNING SWITCH. OPERATIONAL CHECK OF LEFT MAIN LANDING GEAR DOOR WARNING SYSTEM IS GOOD. REFERENCE MAINTENANCE MANUAL 32-62-11.