As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED NR 1 ENGINE OIL PRESSURE SLOWLY DROPPED TO RED LINE AND THE LOW OIL PRESSURE LIGHT CAME ON. ENGINE WAS SECURED AND THE AIRCRAFT WAS LANDED AT ANCHORAGE WITHOUT INCIDENT. INSPECTION REVEALED HEAVY METAL CONTAMINATION IN THE OIL FILTER, FERROUS AND NON-FERROUS METAL. SPECIFIC SOURCE OF FAILURE NOT YET DETERMINED. ENGINE REMOVED FOR OVERHAUL. (M)