As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON DESCENT, CREW NOTICED A LOSS IN HYDRAULIC QTY AND FLUCTUATING HYDRAULIC PRESSURE. A/C LANDED SAFELY WITH OUT FURTHER INCIDENT. UPON INSPECTION, LT ENGINE HYD PUMP WAS FOUND LEAKING FLUID FROM A CRACK IN THE PUMP HOUSING. MAINTENANCE REPLACED THE HYD PUMP AND THE A/C WAS RETURNED TO SERVICE.