As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT, NR 3 ENGINE FAILED TO RESPOND TO THROTTLE. ENGINE SHUTDOWN BY KIWI PROCEDURES AND A/C LANDED IN NEWARK WITHOUT FURTHER INCIDENT. SHUTDOWN WAS 14 MINUTES WITH POSITIVE OIL PRESSURE. FOUND CROSSOVER SHAFT THROTTLE LEVER NUT BACKED OFF AND LEVER LOOSE. RESECURED LEVER ARM TIGHTENED AND SAFETIED NUT PER PWA 72-60-10. RAN ENGINE, OPS CHECKS OK.