As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, A STRONG VIBRATION NOTICED AND ERRATIC EPR AND OIL QUANTITY. HIGH OIL TEMPERATURE, REDUCED LT THROTTLE AND VIBRATION SUBSIDED BUT DID NOT GO AWAY. PERFORMED PRECAUTIONARY ENGINE SHUTDOWN AND LANDING. REPLACED NR 1 ENGINE IAW MM. OPS CHECK GOOD ON ENGINE RUN.