What was found
(CAN) DURING CRUISE WHEN THE CREW SMELLED SMOKE. THERE WAS NO IMMEDIATE CAS MESSAGE THAT ANYTHING WAS WRONG BUT IT SOON DISPLAYED THAT THE HYDRAULIC PUMP AAT-600-029-100-1 WAS OVERHEATING. THE CREW PULLED THE APPROPRIATE C/B AND THE SMOKE ABATED. UPON LANDING, AN ENGINEER INSPECTED THE AIRCRAFT AND FOUND THE HYDRAULIC PUMP SEVERELY OVERHEATED. IT APPEARS THAT THE PRESSURE SWITCH PDM6607P9-6A MAY HAVE FAILED ALLOWING THE PUMP TO RUN CONTINOUSLY. THE PUMP RELAY K11 WAS ALSO FOUND WITH THE CONTACTS WELDED CLOSED. WE`RE NOT SURE AT THIS TIME WHICH COMPONENT FAILED FIRST.