As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT DESCENT, ENGINE NR 4 SHUT DOWN AND RESTARTED 6 TIMES. AFTER THE 6TH RESTART ENGINE SHUTDOWN AND LEFT OFF. AIRCRAFT LANDED SAFELY AND WITHOUT DECLARING EMERGENCY. FOUND NR 4 ENGINE OUT OF BOROSCOPE LIMITS PER AMM. REMOVED AND REPLACED NR 4 ENGINE. (A)