从潜水器上回收的碎片灾难性的内爆美国海岸警卫队称，上周在一次查看泰坦尼克号残骸的航行中，发现了“推测的人类遗骸”。
周三早上，在纽芬兰圣约翰的加拿大海岸警卫队码头，打捞上来的“泰坦”号残骸被从加拿大“北极地平线”号上卸下。
美国海岸警卫队周三晚些时候表示，他们已经收到了残骸和证据，包括在事件中从海底发现的“推测的人类遗骸”，其中五个人去世了。
海岸警卫队表示，证据将被运往美国的一个港口，由海洋调查委员会进行“进一步分析和测试”。
“这些证据将为来自几个国际管辖区的调查人员提供对这场悲剧原因的关键见解，”海事调查委员会主席杰森·纽鲍尔上尉在一份声明中说。“仍然有大量的工作要做，以了解导致泰坦灾难性损失的因素，并帮助确保类似的悲剧不再发生。”
一位熟悉情况的消息人士告诉ABC新闻，海事调查委员会已经与泰坦号上的乘客家属取得了联系。
近一周前，一辆遥控潜水器发现了失踪的海洋之门潜水器在海底。6月22日，包括尾锥在内的残骸在泰坦尼克号船首1600英尺处被发现，这是注定失败的旅游探险开始后的第四天。
第一海岸警卫队指挥官少将·约翰·毛格说，发现的其他碎片“与压力舱的灾难性损失一致”。
加拿大海岸警卫队当时表示，它将留在现场，“应波士顿海上救援协调中心的请求，为恢复和打捞行动提供援助和支持。”
根据国家运输安全委员会的说法，美国海岸警卫队正在领导对这起致命事件的调查，并表示将“为他们的努力做出贡献”
前国家运输安全委员会调查员汤姆·豪特(Tom Haueter)称这项调查为“未知领域”，可能需要“数月”来分析故障。
“这是我能想到的第一起客运潜艇死亡事故，当然也是第一起在这个深度撞上泰坦尼克号的事故，”Haueter告诉ABC新闻。
豪特说，调查的很大一部分将涉及冶金专家查看潜水器的材料，以了解可能出现故障的原因。他说，压力容器区域——乘客所在的车厢——也可能揭示出故障所在。
“是舱门故障还是舱门上的螺栓有问题?它是复合外壳的一部分吗?”豪特说。"看看这些不同的零件，有没有疲劳裂纹?"
他说，调查人员还将考察它的设计、潜水历史和维护。学到的东西可以改善他所谓的非常小的产业。
“我认为有些事情他们将能够学会说，好吧，如果我们要再次这样做，并允许人们下降到这些令人难以置信的深度和惊人的高压，这是在开发这些类型的车辆时应该考虑的事情，”Haueter说。
周三晚上，正在协助调查的加拿大TSB在一份声明中表示，他们已经完成了“相关文件的收集，并完成了对“极地王子”号支援船上人员的初步采访”
TSB已经收集了极地王子的航行数据记录器，并将其发送到加拿大渥太华的加拿大集团工程实验室进行进一步分析。
加拿大皇家骑警周末还表示，他们正在“调查泰坦”号上死亡事件的“情况”，如果“情况表明可能违反了刑事，联邦或省级法律”，他们将展开全面调查
Salvaged debris from Titan submersible contains 'presumed human remains': US Coast Guard
Debris recovered from the submersible thatcatastrophically implodedwhile on a voyage to see the Titanic wreckage last week contained "presumed human remains," the U.S. Coast Guard said.
Salvaged pieces of the Titan vessel were unloaded from the Canadian ship Horizon Arctic at the Canadian Coast Guard pier in St. John's, Newfoundland, Wednesday morning.
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The U.S. Coast Guard said later Wednesday it has received the debris and evidence, including "presumed human remains," that had been recovered from the ocean floor in the incident, in whichfive peopledied.
The evidence will be transported to a port in the U.S. for "further analysis and testing" by the Marine Board of Investigation, the Coast Guard said.
"The evidence will provide investigators from several international jurisdictions with critical insights into the cause of this tragedy," Marine Board of Investigation Chair Capt. Jason Neubauer said in a statement. "There is still a substantial amount of work to be done to understand the factors that led to the catastrophic loss of the TITAN and help ensure a similar tragedy does not occur again.”
The Marine Board of Investigation has been in contact with the families of those who were aboard the Titan, a source familiar with the situation told ABC News.
Debris from the Titan submersible, recovered from the ocean floor near the wreck of the Titanic, is unloaded from the ship Horizon Arctic at the Canadian Coast Guard pier in St. John's, Newfoundland, June 28, 2023.
Paul Daly/The Canadian Press via AP
The development comes nearly a week after a remotely operated vehicle discovered remnants of themissing OceanGate submersibleon the ocean floor. Debris, including the tail cone, was found about 1,600 feet from the bow of the wrecked Titanic on June 22, four days after the launch of the doomed tourist expedition.
Additional debris found was "consistent with the catastrophic loss of the pressure chamber," according to Rear Adm. John Mauger, commander of the First Coast Guard District.
The Canadian Coast Guard said at the time it would remain on scene and "provide assistance and support to the recovery and salvage operations as requested by Maritime Rescue Coordination Centre in Boston."
The U.S. Coast Guard is leading an investigation into the deadly incident, according to the National Transportation Safety Board, which said it will "contribute to their efforts."
Former National Transportation Safety Board investigator Tom Haueter called the probe "uncharted territory" that could take "months" to analyze the failures.
"This is the first fatality on a passenger carriage submarine I can think of and certainly the first one going into Titanic at this depth," Haueter told ABC News.
Haueter said a big part of the investigation will involve metallurgy specialists looking at the materials the submersible was made of to see what could have failed. The pressure vessel area -- the compartment where the passengers were -- may also reveal what failed, he said.
"Was it a hatch failure or is it the bolts on the hatch? Was it part of the composite shell?" Haueter said. "And taking a look at all these different pieces to see, is there fatigue crack?"
Investigators will also look at its design, diving history and maintenance, he said. What is learned could improve what he called a very small industry.
"I think there are things they'll be able to learn to say, OK, if we're going to do this again and allow people to descend to these incredible depths and amazingly high pressures, that here's things that should be considered when developing these types of vehicles," Haueter said.
On Wednesday evening, the TSB of Canada, which is assisting in the investigation, said in a statement that they had completed “collecting relevant documents and completed the preliminary interviews with those on board the support vessel Polar Prince.”
The TSB has collected the Polar Prince’s voyage data recorder and sent it to the Canadian group’s engineering lab in Ottawa, Canada, for further analysis.
The Royal Canadian Mounted Police also said over the weekend that they are "examining the circumstances" of the deaths on board the Titan and will launch a full investigation if "the circumstances indicate criminal, federal or provincial laws may possibly have been broken."
