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Safety Valves Had a Dead Battery, Investigators Find
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Investigators cited in Congressional hearings say the blowout preventor, a 450 ton set of valves, in the BP oil rig explosion and leak, had a dead battery and was leaking hydraulic fluid. It was the last recourse to prevent an accident. The "deadman switch" that is a device used to trigger the preventor if it loses communication with the rig, as it woud in the event of an explosion, did not work because at least one of its two batteries was dead. The leak in the hydraulics that control the valves could have made the valves not able to function as required to shut the well down.
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The maintenance failure for the safety valve and the switch controlling it in the BP explosion.
05/13/2010
A dead battery in asuper-critical switch and hydraulics leaks that made inoperative a crucial safety valve that was the last barrier between safety and an explosion in the waters of the Gulf of Mexico led to the accident on the BP oil rig.
Linked Articles
Safety Valves Had a Dead Battery, Investigators Find
Wall Street Journal 05/13/2010
BP's Hayward Says Company Could Have Done More Disaster Preparation
Wall Street Journal 05/13/2010
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