As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
!AFTER DEPARTURE FROM ATL ENROUTE TO MCO. DURING GEAR RETRACTION CREW NOTED MLG "GEAR DOOR NOT LATCHED" LIGHT ILLUMINATED.CREW CYCLED GEAR AND LIGHT FAILED TO EXTINGUSH. **INSPECTION IS ONGOING AS MORE INFORMATION BECOMES AVAILABLE IT WILL BE PROVIDED. MAINTENANCE FOUND RIGHT HAND MAIN LANDING GEAR DOOR SWITCH CANNON PLUG DIRTY. CANNON PLUG WAS REMOVED, CLEANED AND REINSTALLED IN ACCORDANCE WITH DOUGLAS AIRCRAFT MAINTENANCE MANUAL. OPERATIONAL CHECK GOOD.