At 5:24 p.m. PST, Cooper was informed that his demands had been met, and at 5:39 p.m. the aircraft landed at Seattle-Tacoma Airport. It was more than an hour after sunset and Cooper instructed Scott to taxi the jet to an isolated, brightly lit section of the apron and close each window shade in the cabin to deter police snipers. Northwest Orient's Seattle operations manager, Al Lee, approached the aircraft in street clothes to avoid the possibility that Cooper might mistake his airline uniform for that of a police officer. He delivered the cash-filled knapsack and parachutes to Mucklow via the aft stairs. Once the delivery was completed, Cooper ordered all passengers, Schaffner, and senior flight attendant Alice Hancock to leave the plane.