This month marks a milestone for NASA’s Aviation Safety Reporting System (ASRS), the 35th anniversary of its monthly safety bulletin, Callback. Capt. Rex Hardy, a decorated U.S. naval aviator and test pilot, created the publication in 1979. His vision of a short, readable and informal format to present “lessons learned” (selected from the thousands of anonymous ASRS submissions by flight crews, air traffic controllers, mechanics and others) was an immediate success. Yesterday, current editor Don Purdy published Callback issue number 414.