As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TEN MINUTES INTO 1 LEG OF FLIGHT, NOTICED NR 1 & NR 2 OIL PRESS SLIGHTLY OFF. NOTED DECREASE IN OIL PRESS OF THE NR 2 ENG. AFTER 10 MINUTES PILOT ELECTED TO DIVERT FOR RUN ON LANDING. PILOT BROUGHT NR 2 ENG TO IDLE & SET UP FOR RUN ON LANDING.