OceanGate founder and CEO Stockton Rush crashed a submersible into a shipwreck and then threw the vessel’s rudimentary controls at a more experienced employee years before he piloted the doomed Titan voyage last summer.

Earlier this month, the Coast Guard opened a public hearing that is part of a high-level investigation into the cause of the implosion. The public hearing began Sept. 16 and some of the testimony has focused on problems the Washington state company had prior to the fatal 2023 dive.

A former OceanGate worker gave a warning to the CEO of the company before the Titan submersible disaster. It’s been just over a year since the Titan sub suffered a ‘catastrophic implosion’ on its mission to visit the wreck of the Titanic.