As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EICAS AFT CARGO DOOR & OVERHEAD CARGO DOOR LIGHT CAME ON AT 15 KTS ON TAKEOFF ROLL FWD TO MEL 5271B. COMPLIED WITH DDP. DOOR OPERATES NORMALLY & CLOSES NORMALLY. DDP REQUIRED EACH DEPARTURE, VISUAL VERIFICATION OF DOOR CLOSURE. ACFT OK TO CONTINUE. INSTALLED PLACARDS.