As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER THE ACFT DEPARTED, THE PILOT REPORTED AN HIGH OIL PRESSURE LIGHT, 165 PSI, DURING CLIMB AT FL150. THE PILOT REDUCED POWER AND RETURNED TO ORIGIN. HAD PROPOSED TO REMOVE INSPECT, CLEAN AND REINSTALL THE PRESSURE REGULATING VALVE AND CARRY OUT A GROUND RUN OIL PRESSURE CHECK. CHECK THE MAIN OIL FILTER FOR DEBRIS AND ADVISE OF FINDINGS. WAITING CUSTOMER FINDINGS.