The implosion of the Titan submersible in 2023 killed all five passengers onboard
HandoutFlawed engineering and inadequate testing contributed to the catastrophic implosion of a private submersible during a 2023 expedition to the Titanic wreckage, the US National Transportation Safety Board said Wednesday.
Its report comes after a US Coast Guard investigation in August outlined a litany of issues with operator OceanGate's conduct, as well as design flaws in its Titan submersible, that led to a "preventable tragedy" in which all five passengers were killed.
"We found that OceanGate's engineering process for the Titan was inadequate and resulted in the construction of a carbon fiber composite pressure vessel that contained multiple anomalies and failed to meet necessary strength and durability requirements," NTSB's report said.
"Because OceanGate did not adequately test the Titan, the company was unaware of the pressure vessel's actual strength and durability, which was likely much lower than their target.
"Additionally, OceanGate's analysis of Titan pressure vessel real-time monitoring data was flawed, so the company was unaware that the Titan was damaged and needed to be immediately removed from service" after a previous dive, it added.
OceanGate chief executive Stockton Rush was joined on the doomed expedition by British explorer Hamish Harding, French deep-sea explorer Paul-Henri Nargeolet, Pakistani-British tycoon Shahzada Dawood and his son Suleman.
Seats on the submersible cost $250,000 per person.
Communications were lost with the SUV-sized submersible about an hour and 45 minutes into its dive on June 18, 2023, kicking off a dramatic search that briefly captivated the world.
Debris was found a few days later on the ocean floor, about 1,600 feet (500 meters) from the bow of the Titanic, and human remains were recovered when the sub was brought to the surface.
Shortly after the tragedy, OceanGate halted all operations.
Last year, the family of Nargeolet sued OceanGate for $50 million, accusing the US-based company of gross negligence.
The wreckage of the Titanic sits 400 miles (644 kilometers) off the coast of Newfoundland and has become a lure for nautical experts and underwater tourists since its discovery in 1985.
The ship hit an iceberg and sank in 1912 during its maiden voyage from England to New York, with 2,224 passengers and crew on board. More than 1,500 people died.
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Originally published on doc.afp.com, part of the BLOX Digital Content Exchange.
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