As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE OIL FILTER BYPASS INDICATION ILLUMINATED AND OIL TEMPERATURE, PRESSURE AND QUANTITY REMAINED NORMAL. OIL PRESSURE BEGAN TO RISE AND THEN DROPPED TO ZERO. ENGINE WAS SHUTDOWN, TEMP AND QUANTITY REMAINED STEADY. GROUND INSPECTION FOUND METAL IN THE SCREEN AND ON CHIP DETECTORS. ENGINE WAS REMOVED AND SHOP FOUND NUMBER ONE BEARING SPALLED.