According to Meshkati (1997), the crash of Continental Express Flight 2574 was the most dramatic turning point for "safety culture" in the United States.[http://www.aviation.uiuc.edu/UnitsHFD/TechPdf/02-3.pdf] As a member of the National Transportation Safety Board (NTSB) at that time, Dr. John Lauber suggested that the probable cause of this accident included "The failure of Continental Express management to establish a corporate culture which encouraged and enforced adherence to approved maintenance and quality assurance procedures" (NTSB/AAR-92/04, 1992, pg. 54, as cited in Meshkati, 1997). As a result of this and other similar aviation accidents, safety culture came to the forefront as the exclusive topic at the U.S. National Summit on Transportation Safety, hosted by the NTSB in 1997.