As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING FLIGHT AT FL350, THE OIL PRESSURE PEAKED TO 188 PSI. REDUCTION OF POWER TO IDLE MADE THE OIL PRESSURE DROP TO 166 PSI THEN INTO NORMAL RANGE AFTER 10 MIN. THE FLIGHT WAS DIVERTED AND THE AIRCRAFT LANDED SAFELY. TROUBLESHOOTING IS ON-GOING.