As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 OIL QTY DECREASED TO ZERO AT FLT LEVEL, APPROX 3 MIN LATER OIL PRESS DROPPED INTO YELLOW BAND AND CONTINUED TO FALL. COMPLIED WITH ALL RED TABS AND SHUTDOWN ENGINE. ENGINE WAS NEVER OPERATED AT ZERO OIL PRESSURE. WINDMILLED FOR APPROXIMATELY 15 MINUTES BEFORE LANDING.