As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AIR TURN BACK DUE TO CAPTAIN REPORTING NR 2 HYDRALIC CAUTION ALL PRESSURE AND QTY NORMAL. AIRCRAFT RETURNED TO POINT OF DEPARTURE FOR AN UNEVENTFUL LANDING NO EMERGENCY WAS DECLARED THE NR 2 EDP FAILED, METAL FOUND IN CASE DRAIN FILTER. REPLACEMENT OF EDP AND HYDRAULIC FLUSHING IN PROGRESS.