As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW RECEIVED HYD SYS 1 FAILURE MSG ON THE ICAS DURING DESCEND. AS A PRECAUTIONARY MEASURE, CREW ELECTED TO DECLARE AN EMER, SUBSEQUENT LANDING WAS UNEVENTFUL. FOUND A HYD LEAK AT ENG DRIVEN PUMP HYD PRESS SWITCH. REPLACED ENG DRIVEN HYD PUMP PRESS SWITCH O RING. PERFORMED LEAK & OPERATIONS CHECKED & RELEASED ACFT BACK TO SERVICE.