As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT NR 1 ENG START, THE OVERHEAT DETECTOR ANNUNCIATOR LIGHT CAME ON. SHORTLY AFTER THE NR 1 ENG FIRE SWITCH LIGHT ALSO ILLUMINATED, NO BELL. ENG WAS SHUT DOWN, QRH FOLLOWED. BOTH FIRE BOTTLES USED. FOUND HIGH RESISTANCE LOOP M1759, REPLACED SAME. R & R AFT ENG FIRE BOTTLE IAW AMM 26-21-01-400-801.