As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING FLIGHT THE CREW RECEIVED A LOW OIL PRESSURE INDICATION FOR THE LT ENGINE. THE CREW SHUT THE ENGINE DOWN AND RETURNED FOR A SAFE LANDING. MAINTENANCE REPLACED A LEAKING NR 1 HYDRAULIC PUMP ACCESSORY DRIVE PAD SEAL AT REDUCTION GEARBOX.