As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER NORMAL LANDING WHEN BRINGING ENGINES OUT OF REVERSE, TOWER REPORTED TO CREW THAT FIRE WAS COMING FROM NR 4 ENGINE. CREW REPORTED NO FIRE WARNING INDICATIONS IN COCKPIT, BUT COMPRESSOR STALL WAS HEARD. NO HIGH NACELLE TEMPS WERE NOTED. EGT WAS MAXED OUT AT 750 - 755 DEGREES F FOR APPROXIMATELY 20 SECONDS. EMERGENCY SHUTDOWN OF ENGINE WAS ACCOMPLISHED AND FIRE EXTINGUISHER BOTTLE DISCHARGED. FURTHER ENGINE BOROSCOPE EXAMINATION BEING ACCOMPLISHED.