As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE, AT BEGINNING OF DESCENT, THE ENGINE EXPERIENCED A LOSS OF OIL PRESSURE. THE DROP WAS SLOW BUT CONSTANT UNTIL YELLOW ARC. THE FLIGHT WAS DIVERTED AND AFTER APPROXIMATELY 5 MINUTES THE PRESSURE WENT BACK CLOSE TO NORMAL. NO LOSS OF POWER OCCURRED AND THE ACFT LANDED SAFELY. TROUBLESHOOTING IS ON-GOING.