As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF AND CLIMBOUT TO FL210 FROM KDAY, THE CREW NOTICED THE OIL PRESSURE INDICATION WAS ERRATIC. CREW NOTIFIED ATC OF SHUT DOWN RIGHT HAND ENGINE AS A PRECAUTIONARY MEASURE. CREW PROCEEDED TO CHANGE DESTINATION TO KTOL. LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE HAS YET TO EXAMINE ENGINE FOR THE SPECIFIC CAUSE.