As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENG EXPERIENCED LOW OIL PRESSURE INFLIGHT. NOTED GRADUAL DECREASE IN OIL PRESSURE. ALL OTHER ENG INDICATIONS WERE NORMAL. NO FLUCTUATIONS ON RT ENG. N1 / N2 WERE NORMAL. THROTTLE WAS BELOW CRUISE DETENT. AS OIL FLUCTUATES BETWEEN 30-60 PSI. ON POST FLIGHT OIL WAS NOTED DRIPPING FROM GANG DRAIN. ITEM IS UNDER INVESTIGATION.