On 04 August 2014, the ground controller at Winnipeg Richardson International Airport, Winnipeg, Manitoba, cleared the DHC-8-402 (registration C-FOEN, serial number 4440), operating as WestJet Encore Ltd. flight WEN3112, to taxi for departure via Runway 31 and to hold short of Runway 36. The WEN3112 crew acknowledged the clearance to hold short of Runway 36. At 0900 Central Daylight Time, the tower controller observed that WEN3112 had entered the Runway 36 protected area at the intersection with Runway 31 without a clearance. The tower controller then instructed a WestJet Boeing 737 700, operating as flight WJA318, which was on short final for Runway 36, to go around. WJA318 conducted a goaround and subsequently landed without further incident.