As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN LANDING GEAR WAS SELECTED FOR LANDING, THE 2 AMP LANDING GEAR CONTROL C/B POPPED. CREW TRIED TO RESET IT BUT COULD NOT. GEAR WAS MANUALLY EXTENDED AND AIRCRAFT LANDED WITHOUT INCIDENT. ACFT WAS JACKED, SYS WAS CHECKED BY MAINTENANCE AND FOUND THAT HYDRAULIC POWER PACK HAD FAILED. HYD PACK WAS REPLACED WITH AN O/H UNIT. SYS SERVICED AND GEAR WAS PUT THRU 6 FAULT FREE CYCLES AND RETURNED TO SERVICE.