SteveCorrie offered a very detailed and credible response: "The four pillars concept was originally developed by James P. Stewart, former Director General of System Safety for Transport Canada. It was further expanded after Jim and I joined ALPA, Int'l and in 2000 developed its SMS program.
ICCryH9. 9xk6fdo5ls.pages.dev/4939xk6fdo5ls.pages.dev/2909xk6fdo5ls.pages.dev/4069xk6fdo5ls.pages.dev/3499xk6fdo5ls.pages.dev/159xk6fdo5ls.pages.dev/3249xk6fdo5ls.pages.dev/1929xk6fdo5ls.pages.dev/105
what are the four pillars of safety management
