At 5:30PM in Prisby, seven passengers (including two pilots) got aboard the Prisby 422 commercial jet. The plane was due to leave Prisby Island at 5:45PM, make a stop at Powell Island by 7:45PM, the leave to Heritel and finally land by 9:00PM in the town of Wexington. Due to human error, the plane took off at 5:45PM directly to Heritel, missing its stop in Powell. While the stop at Powell was added to the route in order to drop off and pick up two passengers, flight staff also decided to not refuel the aircraft until it landed in Powell to save costs.