As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALB - FLT 4812 - EN ROUTE TO JFK FROM YUL, THE LEFT ENGINE OIL PRESSURE STARTED DROPPING. WHEN IT GOT TO THE BOTTOM OF THE GREEN ARC, THEY SHUT DOWN THE ENGIEN AND DIVERTED TO ALB. ENGINE REQUIRED OVER FIVE QUARTS OF OIL. REMOVED AND REPLACED THE LEFT ENGINE. (M)