As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHUTDOWN NR 3 ENGINE AT 1130Z IN FLIGHT DUE TO LOW OIL PRESSURE INDICATION AND LOW OIL PRESSURE LIGHT. WINDMILLING OIL PRESSURE 10 PSI. ADDED 5 QTS TO FILL OIL TANK TO FULL. INSPECTED OIL FILTER, FOUND IT CLOGGED AND BYPASSED. CLEANED FILTER IAW PWA MANUAL 72-0 PG 660. CHECKED PRESSURE LOSS PER 79-4-0. RAN-UP ENGINE AND FOUND NO LEAKS.