As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AFTER TAKEOFF LANDING GEAR DISAGREE WARNING LIGHT ILLUMINATED. WE RAN THE CHECKLIST AND FOUND MANUAL OVERRIDE DOOR WAS NOT FULLY CLOSED. IT WAS VERY STICKY AND TOOK SOME EFFORT TO GET IT TO THE CLOSED POSITION TO TURN INDICATOR LIGHT OFF. REMOVED DEBRIS FROM LANDING GEAR MANUAL EXTENSION DOOR AND VERIFIED ADJUSTMENT. OPERTIONAL CHECK GOOD. PER AMM 32-34-00.