As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO DOOR LIGHT CAME ON DURING T.O. STAYED ON UNTIL RTN TO LANDING AND TAXI IN PLACED UNDER MEL DOOR LOCKED VERIFIED CLOSED AFT CARGO DOOR DOOR WARNING LIGHT SYSTEM INOP. PLACED ON MEL AFT CARGO DOOR WARNING, VERIFIED DOOR IS CLOSED BEFORE FLT READJUSTED SWITCH THE SWTCH WASNT SEATED PROPERLY OPS CHECK GOOD