As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AN IN-FLIGHT ISSUE WITH LOW OIL PRESSURE OCCURRED. WHEN MAINTENANCE CHECKED THE SYSTEM THEY FOUND THE OIL PRESSURE GAGE TO BE UNDER READING BY OVER 10 PSI. A NEW GAGE AND SENDER UNIT WAS INSTALLED WITH THE SAME RESULTS. THE SECOND UNIT INSTALLED WAS FOUND TO BE WORKING PROPERLY. ENGINE RUNS WERE CARRIED OUT WITH THE OIL PRESSURE FOUND TO BE WITHIN LIMITS.