As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) A/C WAS ENROUTE FROM YYZ TO FCO AND WHILE OVER YQB HAD A NR 1 ENG LOW OIL PRESSURE WARNING. CREW SHUTDOWN NR 1 ENG AND DIVERTED TO YUL. APPEARS TO BE MAIN OIL PUMP FAILURE. METAL HAS BEEN FOUND IN GEARBOX. ENGINE CHANGE UNDERWAY.