As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LICZ/ETAR - FLT BEHF800 - FIRE INDICATION DURING FLIGHT AT CRUISE ON NR 2 ENGINE. SHUT DOWN ENGINE, AND FIRED BOTH FIRE BOTTLES. AIRCRAFT LANDED WITHOUT INCIDENT. FOUND FIRE LOOP BROKEN AND SHORTED. REPLACED LOOP AND BOTH FIRE BOTTLES. SYSTEM OPERATED GOOD ON GROUND. NO CAUSE FOR ORIGINAL BREAK WAS FOUND.