As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH, NR 4 ENGINE HUNG IN-FLIGHT; PERFORMED EMERGENCY ENGINE HUNG IN FLIGHT CHECKLIST. ENGINE ACCELERATED NORMAL. AFTER LANDING, NR 4 ENGINE SPOOLED DOWN TO 40 PERCENT N2 AND STAYED HUNG. PERFORMED ABNORMAL CHECKLIST TO NO AVAIL. SECURED NR 4 ENGINE. AFTER LANDING GROUND PROXIMITY WARNING SYSTEM FAIL LIGHT ILLUMINATED. REMOVED AND REPLACED NR 4 ENGINE IN ACCORDANCE WITH DC-8 TASK CASD ARROW AIR M/M CARD DC8UN-003 OPERATIONAL CHECK ALL PARAMETERS ARE NORMAL IN ACCORDANCE WITH M/M 71-00.