Simulation and training systems manufacturing

FILE - In this Tuesday, June 20, 2017 file photo a Boing 737 MAX 9 airplane performs a demonstration flight at the Paris Air Show, in Le Bourget, east of Paris, France. Europe’s aviation regulator has taken a step closer to letting the Boeing 737 Max fly again. It published a proposed airworthiness directive on Tuesday that could see it clear the aircraft within weeks to resume flying after nearly two years and a pair of deadly crashes. (AP Photo/Michel Euler, file)

FILE - In this Monday, June 29, 2020, file photo, a Boeing 737 Max jet heads to a landing at Boeing Field following a test flight in Seattle. A U.S. House committee is questioning whether Boeing and the Federal Aviation Administration have recognized problems that caused two deadly 737 Max jet crashes and if either organization will be willing to make significant changes to fix them. (AP Photo/Elaine Thompson, File)

FILE- In this March 21, 2018, file photo a Thai Lion Air employee displays a ceremonial key to the company's newest plane, Boeing's first 737 MAX 9 jet, following a delivery ceremony to the airline in Seattle. The United States and many other countries have grounded the Max 8s and larger Max 9s as Boeing faces the challenge of proving the jets are safe to fly amid suspicions that faulty sensors and software contributed to the two crashes in less than five months. (AP Photo/Elaine Thompson, File)

FILE- In this March 21, 2018, file photo a Thai Lion Air employee displays a ceremonial key to the company's newest plane, Boeing's first 737 MAX 9 jet, following a delivery ceremony to the airline in Seattle. The United States and many other countries have grounded the Max 8s and larger Max 9s as Boeing faces the challenge of proving the jets are safe to fly amid suspicions that faulty sensors and software contributed to the two crashes in less than five months. (AP Photo/Elaine Thompson, File)