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Unformatted text preview: the air intake of engine room number 3 and the mud gas separator shortly after the gas came onto the rig. The catastrophic failure of the mud gas separator created a possible ignition source with the gas plume released onto the rig from the well. B. Contributing Causes of the Explosion The air intake for engine room number 3 is located in the center of the deck just aft of the rig floor, while the air intake of the engine room number 6 is outboard on the starboard side of the rig aft of the rig floor. The Panel concluded that the delayed explosion between engines number 3 and number 6 was due to the difference in the distance between the air intakes and the gas flow. The location of the air intakes for the engine room number 3 and number 6 was a contributing cause of the Deepwater Horizon explosion. The Panel found no evidence that the “rig saver” function of the over‐ speed devices successfully shut down engines 3 and 6. The failure of the over‐ 125 speed devices to initiate shut‐down of the engines was a contributing cause of the Deepwater Horizon explosio...
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