Passenger on a previous Titan sub dive says his mission was aborted due to apparent malfunction

A paid passenger on an expedition to the Titanic with the company that owned the Titan submersible testified before a U.S. Coast Guard investigatory panel Friday that the mission he took part in was aborted due to apparently mechanical failure.

source https://www.cbc.ca/news/canada/newfoundland-labrador/titan-inquiry-1.7329241?cmp=rss