As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NO THROTTLE RESPONSE ON NR 4 ENG DURING DESCENT AT APPROX 8000 FT. CREW REPORTED ACCOMPLISHED COMMANDED INFLIGHT SHUT DOWN OF NR 4 ENG THEN RESTART. THROTTLE RESPONSE OK AFTER INFLIGHT RESTART. REPLACED NR 4 ENGINE DUE TO METAL IN TAILPIPE.