A Canadian military surveillance aircraft detected underwater noises as a massive operation searched early Wednesday in a remote part of the North Atlantic for a submersible that vanished while taking five people down to the wreck of the Titanic.
A statement from the U.S. Coast Guard did not elaborate on what rescuers believed the noises could be, though it offered a glimmer of hope for those lost aboard the Titan as estimates suggest as little as a day’s worth of oxygen could be left if the vessel is still functioning.
As recently as Tuesday, the Coast Guard had not heard any noises. Chief Petty Officer Robert Simpson reportedly said Tuesday that the search party had not heard “any sounds from the sub.”
The underwater noises are a new development.
The Coast Guard has been issuing updates via Twitter. They announced Wednesday that a Canadian P-3 Orion had “detected underwater noises in the search area.”
Searchers then moved an underwater robot to that area to search. However, those searches “have yielded negative results but continue.”
USCG reportedly sent a vessel with “side-scan sonar,” a technology that can scan the seafloor but cannot measure depth.
As of Tuesday morning, the Coast Guard had reportedly searched an area of more than 10,000 square miles. That’s more than the square mileage of New Jersey.
In underwater disasters, a crew unable to communicate with the surface relies on banging on their submersible’s hull to be detected by sonar. However, no official has publicly suggested that’s the case and noises underwater can come from a variety of sources.
The Coast Guard issued a statement after Rolling Stone, citing what it described as internal U.S. Department of Homeland Security emails on the search, said that teams heard “banging sounds in the area every 30 minutes.”
“The data from the P-3 aircraft has been shared with our U.S. Navy experts for further analysis which will be considered in future search plans,” the Coast Guard said.
The reports have sparked hope in some, including Richard Garriott de Cayeux, the president of The Explorers Club. He wrote an open letter to his club’s adventurers, who include the missing British man and the Titanic expert aboard the Titan, that they had “much greater confidence” now after they spoke to officials in Congress, the U.S. military and the White House about the search.
The Canadian military said it provided a patrol aircraft and two surface ships, including one that specializes in dive medicine. It also dropped sonar buoys to listen for any sounds from the Titan.
Take a look at the Coast Guard’s updates —
Three vessels arrived on-scene Wednesday morning, the The John Cabot has side scanning sonar capabilities and is conducting search patterns alongside the Skandi Vinland and the Atlantic Merlin. #Titanic
— USCGNortheast (@USCGNortheast) June 21, 2023
Meanwhile, newly uncovered allegations also suggest there had been significant warnings made about vessel safety during its development.
Lost aboard the vessel are pilot Stockton Rush, the CEO of the company leading the expedition. His passengers are a British adventurer, two members of a Pakistani business family and a Titanic expert.
Rescuers have been racing against the clock because even under the best of circumstances the vessel could run out of oxygen by Thursday morning.
In addition to an international array of ships and planes, an underwater robot had started searching in the vicinity of the Titanic and there was a push to get salvage equipment to the scene in case the sub is found.
Authorities reported the carbon-fiber vessel overdue Sunday night, setting off the search in waters about 435 miles (700 kilometers) south of St. John’s.
The submersible had a four-day oxygen supply when it put to sea around 6 a.m. Sunday, according to David Concannon, an adviser to OceanGate Expeditions, which oversaw the mission.
CBS News journalist David Pogue, who traveled to the Titanic aboard the Titan last year, said the vehicle uses two communication systems: text messages that go back and forth to a surface ship and safety pings that are emitted every 15 minutes to indicate that the sub is still working.
Both of those systems stopped about an hour and 45 minutes after the Titan submerged.
“There are only two things that could mean. Either they lost all power or the ship developed a hull breach and it imploded instantly. Both of those are devastatingly hopeless,” Pogue told the Canadian CBC network on Tuesday.
The submersible had seven backup systems to return to the surface, including sandbags and lead pipes that drop off and an inflatable balloon. One system is designed to work even if everyone aboard is unconscious, Pogue said.
Aaron Newman, who has been a passenger on the Titan, told NBC’s “Today” show Wednesday that if the submersible is below a couple hundred meters and without power, the passengers are in complete darkness and it’s cold.
“It was cold when we were at the bottom,” he said. “You had layered up. You had wool hats on and were doing everything to stay warm at the bottom.”
Documents show that OceanGate had been warned there might be catastrophic safety problems posed by the way the experimental vessel was developed.
David Lochridge, OceanGate’s director of marine operations, said in a 2018 lawsuit that the company’s testing and certification was insufficient and would “subject passengers to potential extreme danger in an experimental submersible.”
The company insisted that Lochridge was “not an engineer and was not hired or asked to perform engineering services on the Titan.” The firm also says the vessel under development was a prototype, not the now-missing Titan.
The Marine Technology Society, which describes itself as “a professional group of ocean engineers, technologists, policy-makers, and educators,” also expressed concern that year in a letter to Rush, OceanGate’s chief executive. The society said it was critical that the company submit its prototype to tests overseen by an expert third party before launching in order to safeguard passengers. The New York Times first reported about those documents.
The search for the missing vessel has drawn international attention, and questions remain about how teams could reach the lost submersible, which could be as deep as about 12,500 feet (3,800 meters) below the surface near the watery tomb of the historic ocean liner. In Dubai, where the missing British adventurer Hamish Harding lives, Crown Prince Hamadan bin Mohammed Al Maktoum wrote: “Dubai and its people pray for their safety and hopeful return home.”
Others aboard include Pakistani nationals Shahzada Dawood and his son Suleman, whose eponymous firm invests across the country. In Pakistan’s port city of Karachi, employees at his firms said they prayed for the two’s safe return, as did government officials. French explorer and Titanic expert Paul-Henry Nargeolet also was on the vessel.
“These are people who lived on the edge and loved what they were doing. If anything’s going on, these are people that are calm and thinking this through and doing what they can to stay alive,” Newman said, adding that he felt safe and in the hands of professionals on his descent. “It’s a good set of people.”
The Horn editorial team and the Associated Press contributed to this article.