As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT AT 31,000 FT, RECEIVED NR 2 ENGINE FIRE WARNING INDICATION. NR 2 ENGINE B-LOOP WAS PUT ON MEL. SHUT DOWN NR 2 ENGINE IAW COM PROCEDURE. DUMPED 90,000 LBS OF FUEL AND RETURNED TO NRT FOR AN UNEVENTFUL LANDING. WORK IN PROGRESS-SUPPLEMENTAL INFORMATION TO FOLLOW.