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"The team did not identify any single action or inaction that caused this accident," the investigators said. "Rather, a complex and interlinked series of mechanical failures, human judgments, engineering design, operational implementation and team interfaces came together to allow the initiation and escalation of the accident." Mark Bly, who as BP's safety chief led the internal investigation, said the report was a reconstruction of what happened on the rig based on the company's data and interviews with mostly BP employees and was not meant to focus on assigning blame. Transocean blasted the report as a self-serving attempt to conceal what it called the real cause of the explosion
-- "BP's fatally flawed well design." Halliburton said it found a number of omissions and inaccuracies in the report and is confident the work it completed on the well met BP's specifications. "Contractors do not specify well design or make decisions regarding testing procedures as that responsibility lies with the well owner," the company said. White House press secretary Robert Gibbs noted "there is an active investigation into what went wrong" and said the administration's job is to find out what happened and hold those responsible accountable. Federal prosecutors are among those investigating. In Wednesday trading in New York, BP stock rose $1.18, or 3.2 percent, to close at $38.37.
Investigators know the explosion was triggered by a bubble of methane gas that shot up the drill column and ignited. But they don't know exactly how and why the gas escaped. And they don't know for certain why the blowout preventer didn't work. But in its report, BP said the blowout preventer didn't do its job because it was damaged in the explosion and because it had a bad valve and weak batteries. Transocean, which was responsible for maintaining the blowout preventer, has insisted the batteries were in working order. ___ Online:
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