New survey: Ethiopian Airlines plane crash satellite has received a distress signal before the crash-passenger plane lost-IT information
Egypt and United States authorities recently confirmed that the crash of Eastern Mediterranean Egypt air flight MS804 aircraft disappeared from the radar a few minutes after, the European and United States satellites were captured on board an emergency distress signal.
United Kingdom the guardian on May 31, citing Egypt reported a statement published by the State News Agency website, investigators received reports, "satellite has received any of the aircraft emergency locator transmitter radio signals". The statement said, a finding that helped rescuers narrow RADIUS.
United States National Oceanic and Atmospheric Administration officials said in a Bloomberg interview Gusen·weierxun, emergency locator transmitter on the Ethiopian Airlines plane crash at 2:36 A.M. local time, automatically send out a radio signal for help. Plane disappeared from the radar of local 2:29 A.M..
Signal is received by 5 satellites and transmitted to a ground station in Cyprus. The satellite earth station to confirm flight MS804 aircraft identity, and the crash site is positioned to a radius of 5 km of the sea.
Said Wilson, United States, Maryland, a ground station from these satellites "two waves", but not enough to locate. Not willing to disclose the names of more than several sources have confirmed to AFP.
Egypt or had received the black box signals
Egypt Ministry of civil aviation said in a statement, 1st, France Navy participation Egypt Airlines flight MS804 of plane wreckage searched a hydrographic vessel "may receive one plane crash black box signals."
The statement said that "the Palace", French hydrographic ships in the Eastern Mediterranean Sea Executive plane wreckage Search task, through its receiver detects a signal from the seabed. That signal may be Jet made by one of the black boxes.
Investigators said May 29 that will take at least 12 days to record flight data and cockpit voice recorders. Based on the information currently available, black boxes may be located 40 km around the crash site area, its built-in battery life time is 4 to 5 weeks.
France aviation safety investigation Board published on 26th press release said that to determine the crash of Egypt air flight MS804 aircraft position, Egypt and France scheduled to begin in the next few days in Egypt near the underwater search.
"Do not rule out any possibility"
From Paris to Cairo, Egypt time airline MS804 in Cairo on May 19 in the Eastern Mediterranean over the disappeared from the radar on board, a total of 56 passengers, 3 security officers and 7 crew members. Egypt announced on 20th of the military, search-and-rescue teams in Egypt, 290 kilometers north of Alexandria Bay plane crash some of the debris, the passenger remains and relics.
On the cause of the crash, media and public opinions. Egypt civil aviation Minister xielifu·fatexi said earlier, plane crash may be due to technical failure or terrorist attack. Accident investigation board says, "do not rule out any possibility of the crash", calling for the public and media respect objective facts, and avoid spreading the wrong information.
A forensic official involved in the crash investigation said May 24, judging from the have found remains of passengers aboard has exploded, and likely to crash. The unnamed official said, at present all of the 80 pieces of human remains were sent back to Cairo is very small, "not even with stump, such as arm or head. "The official said:" a reasonable explanation is that the explosion on board, and then fall. ”
However this claim was soon France refutation of the investigators. They say that at this stage there is no evidence to substantiate the plane explosion had occurred. Agence France-Presse quoted sources familiar with the investigation as saying that in the wreckage or human remains yet found any traces of explosives.
Ethiopian Airlines crash two weeks, black boxes still cannot be found
Airbus to "Catapult" flight recorder
Ethiopian Airlines plane crash nearly two weeks after the crash the aircraft some of the debris in the Eastern Mediterranean are found, the black box still cannot be found. Airbus Executive Vice President chaersi·qianpien said on May 31, the crash events highlight research and development "ejection" need in the black box.
Modern airliner's black box is equipped with emergency locator signal emitter emit a radio signal in a plane crash a month, but Ethiopian Airlines plane wreckage was found up to 3000 feet deep, close to the signal transmission distance limit.
"If we have the ejection of the flight data recorder, searching will be easier," Mr Champion told reporters that "we have been studying the technology, the search also highlighted our approach (the need for). ”
"Ejection" black box at the time of the crash from the rear ejection seat automatically and float on the water, and sent a distress signal. In 2009, 2014 MAS 370 flights of the Air France plane crash after crash, investigators called for the installation of the new black box.
The International Civil Aviation Organization also called for 2021 deliveries of new aircraft to achieve important data "rapid" recovery function, but that target is set by the airline and the aircraft manufacturer to determine how to implement, may include the installation of "launch" black box or the introduction of new guidance or data stream.
最新调查：埃航客机坠毁前卫星曾收到求救信号 - 客机,客机失联 - IT资讯
埃及和美国相关部门日前证实，坠毁地中海的埃及航空MS804航班客机从雷达上消失几分钟后，欧洲与美国的多颗人造卫星曾捕捉到机上发出的紧急求救信号。
英国《卫报》5月31日援引埃及国家新闻局网站发表的一份声明报道，调查人员获得报告显示，“卫星曾收到客机上紧急定位发射器发出的无线电求救信号”。声明说，这一发现帮助搜救人员缩小了搜寻范围。
美国国家海洋和大气管理局官员贾森·威尔逊接受彭博社采访时说，埃航客机上的紧急定位发射器于当地时间凌晨2时36分，自动发出无线电求救信号。失事客机从雷达上消失的时间为当地时间凌晨2时29分。
信号被5颗人造卫星接收到，并传至塞浦路斯的一个地面站。这个卫星地面站确认了MS804航班客机的身份，并将坠机地点定位到一个方圆5公里的海域。
威尔逊说，美国马里兰州一个地面站还从这些卫星获得“两波信号”，但不足以定位。不愿意公开姓名的多名消息人士也向法新社证实了以上说法。
埃及或已收到黑匣子信号
埃及民航部1日发表声明说，法国海军参与埃及航空公司MS804航班失事客机残骸搜寻的一艘水道测量船“可能接收到了失事客机其中一个黑匣子发出的信号”。
声明说，“皇宫”号法军水道测量船在地中海海域执行失事客机残骸搜寻任务时，通过其信号接收设备探测到了来自海底的信号。该信号有可能是失事客机其中一个黑匣子发出的。
调查人员5月29日说，还需要至少12天才能找到记录飞行数据和驾驶舱语音的黑匣子。根据目前掌握的信息，黑匣子可能位于坠机地点周围40公里区域内，其内置电池的续航时间为4周到5周。
法国民航安全调查分析局26日发表新闻公报说，为确定坠毁的埃及航空公司MS804航班客机位置，埃及和法国计划于未来几天开始在埃及附近海域进行水下搜寻。
“不排除任何一种可能性”
由巴黎飞往开罗的埃及航空公司MS804客机于开罗时间5月19日凌晨在地中海上空从雷达上消失，机上共有56名乘客、3名安全人员和7名机组人员。埃及军方20日宣布，搜救团队在埃及亚历山大港以北290公里处海域发现失事客机部分残骸、乘客遗骸和遗物。
关于坠机原因，媒体和坊间的说法众说纷纭。埃及民航部长谢里夫·法特希此前表示，客机失事原因可能是技术故障或恐怖袭击。事故调查委员会则称，“不排除坠机的任何一种可能性”，呼吁民众及媒体尊重客观事实，避免散播错误信息。
一名参与坠机调查的法医官员5月24日说，从已经找到的乘客遗骸判断，机上曾经发生爆炸，可能因此坠机。这名不愿公开姓名的官员透露，目前送回开罗的所有80件遗骸都很小片，“甚至没有整具残肢，例如手臂或头颅。”这名官员说：“合理的解释是机上发生爆炸，而后坠落。”
不过这一说法很快遭到法国调查人员的驳斥。他们称，现阶段，尚无任何迹象能够证实飞机上曾经发生过爆炸。法新社也援引熟悉调查情况的消息人士的话说，目前在飞机残骸或人体遗骸上尚未发现任何爆炸物的痕迹。
埃航客机失事已两周，黑匣子仍不知所踪
空客再提“可弹射”黑匣子
埃航客机失事已近两周，客机部分残骸在地中海被发现，黑匣子仍不知所踪。空中客车公司执行副总裁查尔斯·钱皮恩5月31日说，这起客机失事事件凸显研发“可弹射”黑匣子的必要性。
现代客机的黑匣子上装有紧急定位信号发射装置，可在飞机失事一个月内持续发出无线电信号，但发现埃航飞机残骸的海域水深达3000米，接近信号发射距离极限。
“如果我们有可弹射的飞行记录仪，搜寻起来会容易得多，”钱皮恩对媒体记者说，“我们一直在研究这项技术，这次搜寻也凸显我们的方法（的必要性）。”
“可弹射”黑匣子在客机失事时可自动从飞机尾部弹射，并在水面漂浮，同时发出求救信号。2009年法航客机失事、2014年马航370航班客机失事后，调查人员呼吁安装这种新型黑匣子。
国际民航组织也呼吁，2021年以后交付的新飞机要实现重要数据“迅速”回收功能，但这一目标将由航空公司和飞机制造商来决定如何实现，可能的方式包括安装“可弹射”黑匣子或引进新的导引方式或数据流。