As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NR 4 ENGINE EXPERIENCED HIGH NACELLE TEMPERATURE. THE FORWARD PANEL FIRE DETECTOR ILLUMINATED, BUT THE FIRE WARNING BELL DID NOT ACTIVATE. CREW FOLLOWED COCKPIT OPERATING PROCEDURE, SHUT ENGINE DOWN, DUMPED 170,000 POUNDS OF FUEL, AND DIVERTED TO MSP WITHOUT FURTHER INCIDENT. FOUND BLOW-OUT DOORS MISSING ON LEFT COWL OF THE NR 4 ENGINE. AIRCRAFT WAS SCHEDULED FOR NR 4 ENGINE CHANGE.