NEW ORLEANS — A Transocean employee who survived the Deepwater Horizon rig explosion testified Tuesday that a subordinate killed in the blast was one of the workers who apparently missed signs that BP’s well was about to blow out.
Randy Ezell, the first rig worker to testify in person at a trial designed to assign blame for the 2010 disaster, said Jason Anderson was a ‘‘top-notch’’ toolpusher who would have done everything in his power to prevent the blowout.
Anderson was one of 11 workers killed on the rig, which was owned by Transocean Ltd. and leased by BP PLC.
Ezell, who was one of Transocean’s top supervisors on the rig, said Anderson and others, including BP supervisors, misinterpreted safety test results. He said Anderson told him in a phone call less than an hour before the explosion that it was a ‘‘good test’’ and there were no signs of trouble for 30 minutes after the test.
Well data showed the first sign of a problem could have been spotted about 20 minutes before that call, plaintiffs’ attorney Paul Sterbcow said.
‘‘All I can tell you is Jason apparently misinterpreted what he was seeing,’’ said Ezell.
Ezell said BP’s well site leaders were responsible for deciding how the tests were performed and interpreted.