联邦调查人员周一表示，天气状况是他们对这起发生在佛罗里达州南部、造成九人死亡的私人喷气式飞机坠毁起火事故调查的“重点关注对象”。
Federal investigators said Monday that weather conditions are a "major focus" of their investigation into the fiery private jet crash that killed nine people in South Florida.
国家运输安全委员会（NTSB）成员汤姆·查普曼表示，调查人员已掌握初步迹象，显示这架利尔60型喷气式飞机在周日下午坠毁于棕榈滩县一个社区前，已在空中解体。
National Transportation Safety Board (NTSB) member Tom Chapman said investigators have preliminary indications that the Learjet 60 was breaking apart before it crashed in a Palm Beach County neighborhood Sunday afternoon.
“我们确实有一些迹象表明，飞机在撞击前已在空中解体，”查普曼在周一的新闻发布会上说。“因此，其中一些情况尚待确定。我们可能会在距实际撞击地点相当远的地方发现飞机残骸。”查普曼表示，调查人员还在检查该喷气式飞机在约35,000英尺高空遭遇的天气状况，机组人员在坠机前不久曾报告遭遇结冰和中度湍流。
"We do have some indication that the aircraft was breaking up before impact," Chapman said during a Monday news conference. "And so, some of this has yet to be determined. We may find parts of the aircraft some distance away from the actual impact site." Chapman said investigators are also examining the weather conditions the jet encountered at approximately 35,000 feet, where the crew reported icing and moderate turbulence shortly before the crash.
“气象条件是调查的重点关注对象，”查普曼说。“你们都看到了地面上的天气状况。我们必须确定的是高空的天气状况如何。”据国家运输安全委员会称，该飞机于周日上午10点37分左右从德克萨斯州奥斯汀-伯格斯特罗姆国际机场起飞，目的地为巴哈马的北埃柳塞拉岛，机上有两名机组人员和七名乘客。
"The weather conditions are a major focus of the investigation," Chapman said. "You all saw what the weather was like here at the surface. What we have to determine is what the weather conditions were like at altitude." The aircraft departed Austin-Bergstrom International Airport in Texas around 10:37 a.m. Sunday, bound for North Eleuthera in the Bahamas with two crew members and seven passengers aboard, according to the NTSB.
大约在中午12点47分，机组人员报告遭遇了可控的轻度透明结冰和中度湍流，在35,000英尺高度飞行时高度偏差约为700英尺。
At approximately 12:47 p.m., the crew reported encountering manageable light clear ice and moderate turbulence, with altitude deviations of roughly 700 feet while flying at 35,000 feet.
机组人员还报告了外部温度为零下47摄氏度（即零下53华氏度），随后在遭遇降水后请求许可爬升至37,000英尺。
The crew also reported an outside temperature of minus 47 degrees Celsius, or minus 53 degrees Fahrenheit, before requesting permission to climb to 37,000 feet after encountering precipitation.
空中交通管制批准了该请求，但不到30秒后，机组人员报告正在下降，并于中午12点48分左右发出了求救信号。
Air traffic control approved the request, but less than 30 seconds later, the crew reported descending and issued a mayday call around 12:48 p.m.
据查普曼称，机组人员发出呼叫：“我们处于超速状态，正在下降，”他表示，该呼叫的其余部分无法辨认。
"We are in an overspeed condition, descending," the crew transmitted, according to Chapman, who said the remainder of the message was unintelligible.
后续通讯显示，该喷气式飞机在佛罗里达州克雷斯特黑文附近的一个居民区坠毁前正在迅速失去高度，坠机时间约为下午12点50分，机上九人全部遇难。
Subsequent communications indicated the jet was rapidly losing altitude before it crashed into a residential area near Cresthaven, Florida, around 12:50 p.m., killing all nine people aboard.
美国国家运输安全委员会（NTSB）首席调查员蒂莫西·曼维尔表示，现场调查将需要数天时间，从道路上的撞击坑中回收残骸构成重大挑战。
NTSB investigator-in-charge Timothy Manville said the on-scene investigation will take several days, with recovering the wreckage from a crater in the roadway posing a significant challenge.
曼维尔说：“我们将面临的最大障碍是从道路上的撞击坑中回收主要残骸。”
"The biggest obstacle that we're going to have is recovering the major wreckage from the impacted crater on the roadway," Manville said.
正如福克斯新闻数字频道此前报道，行车记录仪拍下的画面显示，该喷气式飞机以机头朝下的姿态冲入社区，并爆发成巨大的火球。
Dashcam footage captured the jet plunging nose-first into the neighborhood and erupting into a massive fireball, as Fox News Digital previously reported.
佛罗里达州州长罗恩·德桑蒂斯周日将这起坠机事件描述为“灾难性的”，称该飞机“看起来像一枚俯冲的导弹”，并在路边留下了一个大坑。
Florida Gov. Ron DeSantis described the crash as "cataclysmic" Sunday, saying the aircraft "looked like a missile going down" and left a large crater beside the road.
据当地官员称，坠机事件还导致附近一个活动房屋社区约600人被疏散。
The crash also prompted the evacuation of approximately 600 people from a nearby mobile home community, according to local officials.
美国联邦航空管理局（FAA）正在协助NTSB的调查。坠机原因尚未确定。
The FAA is assisting the NTSB investigation. The cause of the crash has not been determined.