As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TURN BACK, AFTER TAKEOFF THE LOWER CARGO FIRE PROTECTION AFT LIGHT CAME ON AND WENT OUT 2-4 SECONDS AFTER SILENCING THE BELL. ACCOMPLISHED CHECKLIST AND DUMPED FUEL. RETURNED TO GYE AIRPORT. FUEL DUMPED 43,000 KGS. LOWER CARGO FIRE PROTECTION CHECKED PER MM 26-15-01. OPERATIONAL CHECK OK. (M)