As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE OIL QUANTITY DECREASED TO 1 QUART. AIRCRAFT DIVERTED TO YQX. ENGINE WAS NOT SHUT DOWN. *S/D* SUSPECT LEAK AT NR 3 BEARING OIL SCAVENGE TUBE UPPER B-NUT. NO DEFECTS WERE FOUND. POSSIBLE INSTALLATION OR TORQUING ERROR. REVIEWED INSTALLATION AND TORQUING PROCEDURES WITH SHOP MECHANICS.