As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE AND DESCENT NR 2 ENG OIL QTY SLOWLY DECREASED FROM 3.2 TO 0 GAL. OIL TEMP AND PRESS IN GREEN ARC. ON FINALOIL PRESS BEGAN TO FLUC AND DROPPED OUT OF GREEN W/LOW OIL PRESS LIGHT ILLUM. IN FLT SHUTDOWN CK COMPLETED. REPLACED MAIN OIL FILTER. INSPECTED FILTER AND CHIP DETECTOR PER WINDMILL INSP, BOTH OK. FOUND OIL FILTER DIFF PRESS SW LINES LOOSE/ LEAKING. SECURED LINES. RAN ENG, LEAK CHECK GOOD.