He founded FlightSafety International in 1951, the world's foremost aviation training organization, after noticing that corporate pilots did not receive the same rigorous training as airline pilots had. His first endorsement came from Trippe, who was President of Pan Am at the time. Ueltschi stepped down as President of FlightSafety in 2003, yet remained Chairman. The motto he started with still remains with FlightSafety today: "The best safety device in any aircraft is a well-trained crew." Berkshire Hathaway acquired FlightSafety in late 1996.