The concept style was presented in October 1964 with the Air Transport Association routine maintenance and engineering convention by Main challenge engineer Jack Steiner, where by its elaborate significant-raise equipment raised problems about upkeep prices and dispatch reliability.[five] By the early nineteen nineties, Boeing was experiencing a significant danger with https://500loansforbadcredit09727.spintheblog.com/36915632/not-known-facts-about-737-cash