As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CLIMB OUT FROM YVO THE RIGHT HAND ENGINE LOSS OIL PRESSURE. THE OIL PRESSURE CAUTION LIGHT ILLUMINATED AND THE CREW SHUTDOWN THE RT ENGINE AND RETURNED TO DEPARTURE. MAINTENANCE FOUND A CUT O-RING TO THE INLET OF THE RT ENGINE OIL COOLER. THE OIL COOLER AND ASSOCIATED O-RINGS WERE REPLACED AS A PRECAUTION AND THE ACFT RETURNED TO SERVICE.