A lot of people are asking how laptops could've caused the crew of Northwest Flight 188 to overfly MSP ? According to the NTSB, using laptops on the flight deck is strictly prohibited during flight, but even a quick glance at the tray table on each side of the Airbus A320 family flight deck shows how a laptop monitor could easily block the pilot's navigation display . The tray table is available to both crew members because Airbus uses a sidestick controller rather than the center yoke