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United Airlines Flight 389 was a scheduled flight from LaGuardia Airport, New York City, New York, to O'Hare International Airport, Chicago, Illinois. On August 16, 1965, at approximately 21:21 EST, the Boeing 727 crashed into Lake Michigan east of Fort Sheridan, near Lake Forest, while descending from 35,000 feet mean sea level (MSL). All 30 people on board perished, including Clarence "Clancy" Sayen, the former president of the Air Line Pilots Association. There was no indication of any unusual problem prior to impact. A definitive cause was not determined by National Transportation Safety Board (NTSB) investigators. However, it was believed that the crash was most likely the result of the pilots misreading their three-pointer (3p) altimeters by 10,000 feet.〔(NTSB Aircraft Accident Report )〕 At the time of the accident, United Airlines had 39 other 727s in the fleet (of the 247 Boeing 727s ordered), all of which, were 727-100 (727-22). 〔http://www.planelogger.com/Airline/Fleet/United%20Airlines#RegistrationList〕 ==Aircraft== The aircraft involved was a United Airlines Boeing 727-100 (727-22), registration With serial number 18328, and line number 146, the aircraft had its maiden flight on the 18th of May, 1965 with delivery to United Airlines on the 3rd of June, 1965 meaning it had been in passenger service for 2 and a half months before it crashed. The aircraft had completed 138 cycles (take offs and landings) before the accident was equipped with 3 Pratt & Whitney JT8D-1 engines for propulsion and had no major mechanical problems reported in the time leading up to the accident.〔http://www.planelogger.com/Aircraft/View?Registration=N7036U&DeliveryDate=03.06.65〕 Before the crash Boeing 727s had been operating commercially for approximately 2 years and N7036U was the first 727 to be written off. It was also the second United Airlines 727 to crash that year, the other being United Airlines Flight 227, a fatal crash landing attributed by poor decision made by the captain. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「United Airlines Flight 389」の詳細全文を読む スポンサード リンク
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