The incident aircraft was a Bombardier Q400, owned by Horizon Air (and operating for Alaska Airlines) with the registration N449QX[2][3][4] and serial number 4410. It had first flown in 2012 and was delivered new to Horizon Air in the same year.[4] It landed at Seattle–Tacoma International Airport at 13:35 local time the afternoon of the incident, after an in-service flight from Victoria, British Columbia.[5] It was not scheduled to fly again that day.[6]