As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB HAD FIRE WARNING ON NR 3 ENGINE. PERFORMED FIRE SEVERE DAMAGE OR SEPARATION CHECKLIST. ENGINE SECURED AT 2324Z, HAD GOOD OIL PRESS (15 PSI) FUEL DUMP COMPLETED. FOUND NR 3 THRUST REVERSER SEQUENCE VALVE LEAKING HOT AIR ON FIRE SENSOR. REMOVED AND REPLACED NR 3 T/R SEQUENCE VALVE. LEAK AND OPS CHECK GOOD.