Tony Nissen, the former engineering director of OceanGate, testified that he felt pressured to get the Titan submersible ready for its dives, despite significant safety concerns, and refused to pilot it in 2019 due to mistrust in the operations staff and concerns about its condition, which was further compromised by a lightning strike in 2018. He stated that CEO Stockton Rush prioritized costs and schedules over safety and often dismissed warnings about the submersible's readiness. The Titan imploded in June 2023 during a dive to the Titanic wreck, killing all five on board and sparking a global debate on private undersea exploration. The U.S. Coast Guard's ongoing hearing aims to uncover the causes of the tragedy and prevent future incidents. The last communication from the Titan crew was a message stating 'all good here' before contact was lost. The National Transportation Safety Board is also conducting a parallel investigation.