As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) IN CLIMB, THE OIL PRESSURE GRADUALLY DESCENDED. THE PILOT PERFORMED A PRECAUTIONARY LANDING. THE OIL SYSTEM WAS INSPECTED TO ENSURE THAT THE OIL FILTER WAS NOT BLOCKED. WHEN ATTEMPTING TO RESTART THE ENGINE, CODE 50 ILLUMINATED ON THE (EIS) PANEL INDICATING A PROBLEM WITH THE OIL PRESSURE TRANSMITTER. THE TRANSMITTER WAS REPLACED AND THE SYSTEM WAS SERVICEABLE.