As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT OBSERVED THE HYD CAUTION LIGHT STAYED ILLUMINATED & FELT THE FLIGHT CONTROLS STIFFEN UP AFTER ENG START. TAKE OFF WAS ABORTED & THE ENG WAS SHUT DOWN. HYD FLUID RESERVOIR WAS FULL SO HYD PUMP WAS REPLACED. HYD OPERATED NORMALLY & ACFT WAS RETURNED TO SERVICE. HYD PUMP DRIVE SHAFT & ADAPTER FOUND SERVICEABLE. PUMP IS BEING SENT TO THE OEM FOR REPAIR OR OVERHAUL AS NECESSARY.