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Indonesia AirAsia Flight 8501 (QZ8501/AWQ8501) was a scheduled international passenger flight, operated by AirAsia Group affiliate Indonesia AirAsia, from Surabaya, Indonesia, to Singapore. On 2014, the aircraft operating the route, an Airbus A320-216, registered as PK-AXC, msn: 3648, crashed into the Java Sea during bad weather, killing all 155 passengers and seven crew on board. Two days after the crash, debris from the aircraft and human remains were found floating in the Java Sea. Searchers located wreckage on the sea floor beginning on , and the flight data recorder and cockpit voice recorder were recovered by . The search for bodies ended in March 2015 after recovery of 113 of the 162 bodies. On 2015, it was reported that the aircraft had stalled during an abnormally steep climb and had been unable to recover. On 1 December 2015, the Indonesian National Transportation Safety Committee released its report concluding that that the sequence of events leading to the crash started with a malfunction in the rudder travel limiter unit that eventually led to a 104-degree roll of the aircraft. The pilots' response, and apparent miscommunication between them, was a significant link in the chain of events that led to the loss of the aircraft.〔 〕 The air crash, as authorities referred to it, of 28 December 2014 was the second-deadliest in Indonesian territory, behind Garuda Indonesia Flight 152 in 1997, the third-deadliest aviation incident in 2014, behind Malaysia Airlines Flight 370 and Malaysia Airlines Flight 17, and the third-deadliest involving an A320 family, behind TAM Airlines Flight 3054 in 2007 and Metrojet Flight 9268 in 2015. It was also AirAsia Group's first fatal crash in the 18-year history of the company. == Sequence of events == Flight 8501 was a scheduled flight from Surabaya, Java, Indonesia to Singapore on Sunday, 2014. It was scheduled to depart Juanda International Airport at 05:20 Western Indonesian Time (WIB, UTC+7) and arrive at Singapore Changi Airport at 08:30 Singapore Standard Time (SST, UTC+8).〔 Flight 8501 took off at 05:35. Indonesia AirAsia did not have permission from the Indonesian Ministry of Transportation to operate the route on Sundays.〔 After departure, Flight 8501 was in contact with the Jakarta Area Control Centre (callsign: "Jakarta Center"),〔 which provides air traffic control (ATC) service over the western Java Sea, and flying along air route M635, when it approached a line of thunderstorms off the southwest coast of Borneo.〔(【引用サイトリンク】 url = http://www.weathergraphics.com/awq8501/ )〕 At 06:12, Flight 8501 was flying at flight level 320—approximately —when the cockpit requested and received permission to deviate left from its original flight path to avoid these storms. The pilot then requested to climb to flight level 380,〔 which was deferred by ATC because of other aircraft in the vicinity.〔〔 AirNav Indonesia, which operates the Jakarta Area Control Centre, reported that Jakarta Centre then cleared Flight 8501 to flight level 340 at 06:14, but no response was received; other aircraft in the vicinity were asked to contact Flight 8501, but also did not receive a response.〔 Between 06:17:00 and 06:17:54, the aircraft climbed from ,〔 exceeding a climb rate of per minute, about twice the maximum rate that a commercial aircraft should climb in still air. A photo of a secondary radar screen, without a timestamp, showed the aircraft at flight level 363—approximately —and climbing with a ground speed of , which is too slow to maintain stable level flight in still air.〔 The Indonesian Minister of Transport interpreted the apparent aircraft behaviour at peak altitude as an aerodynamic stall, when it began to descend at 06:17:54, descending within six seconds and within 31 seconds.〔 The aircraft also began a turn to the left, forming at least one complete circle before disappearing from radar at 06:18:44.〔〔 The cockpit voice recorder captured multiple warnings, including a stall warning, sounding in the cockpit during the final minutes of the flight. No distress signal was sent from the aircraft. 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「Indonesia AirAsia Flight 8501」の詳細全文を読む スポンサード リンク
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