As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENG FIRE LIGHT AT 340, BOTH BOTTLES FIRED AFTER FOLLOWING QRH. FIRE DEPT INDICATED NR 2 ENG HAD SIGNIFICANT HEAT SIGNATURE. R & R NR 2 ENG FIRE SENSING ELEMENTS BOTH BOTTOM & TOP. INSTALLED SQUIBS & FIRE BOTTLES. C/W HIGH POWER RUN.