As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT TAKEOFF WHEN GEAR RETRACTED (GEAR HANDLE UP) RED DOOR LIGHT & 2ND OFF. PNL RIGHT MG DOOR ANNUNCIATOR LIGHT REMAIN ON. FOUND CANNON PLUG FOR RG DOOR SWITCH BACKED OFF. CLEANED PLUG AND ATTACHED SAFETY WIRED PER MM REF 32-62-011-4. OPS CK NORMAL PER 727-10 MM REF 32-00-001-5. AC OK FOR SERVICE.