As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) A MISSION HAS BEEN ABORTED DUE TO IMPORTANT OIL LEAK FROM THE ENGINE FRONT CASE ASSEMBLY. AFTER AN INVESTIGATION, IT WAS FOUND THAT THE UPPER OIL TRANSFER TUBE PORT THREADS ON THE FRONT CASE DAMAGED AND HAD ITS PLUG LOOSENED THAT CAUSED AN EXCESSIVE OIL LEAK. NOTE: SERVICE BULLETIN NO.1755, FRONT CASE OIL TRANSFER TUBE PORT THREAD REPAIR WAS NOT INCORPORATED.