2010 Event Three Airbus A380 planes are grounded by Singapore Airlines in order to replace their Rolls Royce engines 1987 Event Flight Readiness Firing of Discovery's main engines is successfully 1985 Event Flight readiness firing of Atlantis' main engines; 20 seconds 1984 Event Flight readiness firing of Discovery's main engines 1983 Event 2nd flight readiness firing of Challenger's main engines; 22 seconds 1982 Event Flight readiness firing of Challenger's main engines; 20 seconds 1981 Event Flight readiness firing of Columbia's main engines; 20 seconds 1938 Event GM began mass production of diesel engines 1912 Event 1st U.S. submarines with diesel engines commissioned, Groton, Connecticut
