As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE LOST OIL PRESSURE ON CLIMBOUT, FOR DURATION OF 9 MINUTES ENGINE WINDMILLED. OIL PRESSURE DECREASED AS OIL QUANTITY DECREASED. IN FLIGHT SHUT-DOWN. REPLACED THE MAIN OIL FILTER HOUSING CAP O-RING AND INSPECTED THE MAIN OIL FILTER, NO METAL FOUND, IAW DC-9 MM 72-20-06.