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USAir Flight 427 was a scheduled flight from Chicago's O'Hare International Airport to Pittsburgh International Airport, with a final destination of West Palm Beach, Florida. The flight crashed on Thursday, September 8, 1994, killing all 132 on board. The Boeing 737-3B7 flying the route, registered N513AU, and previously registered as N382AU, was approaching runway 28R of Pittsburgh International Airport, located in Findlay Township, Allegheny County, Pennsylvania, which was at the time the largest hub for the airline. ==Crash== Captain Peter Germano, 45, was hired by USAir in February 1981. First officer Charles B. "Chuck" Emmett III, 38, was hired in February 1987 by Piedmont Airlines. Both the captain and first officer were regarded as excellent pilots. They were both very experienced, with approximately 12,000 flight hours and 9,119 flight hours respectively. Flight attendants Stanley Canty and April Slater were hired in 1989 by Piedmont Airlines. Flight attendant Sarah Slocum-Hamley was hired in October 1988 by USAir. Piedmont merged with USAir in 1989. During its arrival into Pittsburgh, Flight 427 was sequenced behind Delta Airlines Flight 1083, a Boeing 727-200. At no time was Flight 427 closer than 4.1 miles to Delta 1083, according to radar data.〔http://www.ntsb.gov/investigations/AccidentReports/Reports/AAR9901.pdf〕 During the approach, Flight 427 encountered wake turbulence from Delta 1083; the FAA, however, determined "the wake vortex encounter alone would not have caused the continued heading change that occurred after 1903:00."〔http://lessonslearned.faa.gov/USAir427/usa427%20ntsb%20findings.pdf〕 At 7:02:57 p.m., there were three sudden thumps, clicking sounds, and a louder thump, and then the 737 began to bank and roll to the left. The aircraft stalled and rolled upside down. Germano exclaimed "Hold on" numerous times, while Emmett said "Oh shit" frequently. Germano exclaimed, "What the hell is this?" As air traffic control noticed Flight 427 descending without permission, Germano keyed the mic and stated, "Four-twenty-seven, emergency!" The aircraft then rolled back upright, but after a few seconds on its side, the aircraft continued to roll while pitched nose-down at the ground. Emmett shouted "What the hell!" and the air traffic controller heard this. In an 80-degree nose-down position, banked 60 degrees left and traveling at , the 737 slammed into the ground and exploded at 7:03:25 p.m. in Hopewell Township, Beaver County,〔"(28 Seconds of Horror )," ''Pittsburgh Tribune-Review''〕 near Aliquippa. All 127 passengers and five crew members were killed. The plane just barely missed the Green Garden shopping plaza and the Aliquippa exit of the Beaver Valley Expressway (I-376, then PA-60), which was crowded with commuter traffic. The 737 crashed onto a private gravel driveway and hillside on Pettita Lane in an area protected against trespassing. A memorial has been placed at the site of impact. At the time of the crash, Flight 427 was the second-deadliest accident involving a Boeing 737; as of 2012, it was the sixth deadliest. It was also the seventh-deadliest aviation disaster in the history of the United States; as of 2012, it ranked ninth. The accident marked USAir's fifth crash in the period from 1989 to 1994.〔"(28 Seconds: The Mystery of USAir Flight 427 Part One: Zulu )." (4 ). Retrieved on December 31, 2012.〕 After the crash, USAir had difficulty determining Flight 427's passenger list, facing confusion regarding five or six passengers. Several employees of the U.S. Department of Energy had tickets to take later flights, but used them to fly on Flight 427. One young child was not ticketed.〔 As a result of the severity of the crash impact, the bodies of the passengers and crew were severely fragmented, leading investigators to declare the site a biohazard. 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「USAir Flight 427」の詳細全文を読む スポンサード リンク
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