Employee who called Titan submersible unsafe to testify before Coast Guard

A key employee who labelled an experimental submersible unsafe prior to its last, fatal voyage was set to testify Tuesday before US Coast Guard investigators.

David Lochridge is one of the most anticipated witnesses to appear before a commission trying to determine what caused the Titan to implode en route to the wreckage of the Titanic last year, killing all five on board.

Lochridge is former operations director for OceanGate, the company that owned the Titan and brought it on several dives to the Titanic going back to 2021.

His testimony will come a day after other witnesses painted a picture of a troubled company that was impatient to get its unconventionally designed craft into the water. The accident set off a worldwide debate about the future of private undersea exploration.

Among those killed was Stockton Rush, co-founder of OceanGate. The company, based in Washington state, suspended its operations after the implosion.

OceanGate's former engineering director, Tony Nissen,