As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LANDING ROLLOUT, THE NR 4 ENGINE REMAINED IN REVERSE RESULTING IN A COMPRESSOR STALL AND OVERTEMP. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT TAXIED TO THE GATE. FOUND NR 4 THRUST REVERSER DRIVE UNIT INOPERATIVE. LOCKED OUT NR 4 THRUST REVERSER, BORESCOPED NR 4 ENGINE, AND PERFORMED ENGINE RUN. AIRCRAFT RETURNED TO SERVICE.