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Unformatted text preview: n. The “gooseneck” configuration of the mud gas separator vent allowed for the venting of hydrocarbons back onto the rig. This increased the risk of ignition. The location and design of the mud gas separator outlet vents was a contributing cause of the Deepwater Horizon explosion. Prior to the two explosions, approximately 20 gas alarms went off indicating the highest level of gas concentration on the rig. Andrea Fleytas, the dynamic positioning officer, testified that she received a phone call from the engine room, but she never informed them to initiate the emergency shutdown sequence or that there was a well control event. Fleytas’ failure to instruct the Deepwater Horizon engine room crew to initiate the emergency shutdown sequence after receiving 20 gas alarms indicating the highest level of gas concentration was a contributing cause in the Deepwater Horizon explosion. C.
Possible Contributing Causes of the Explosion Neither the engine room nor the switch‐gear room was a classified area. Therefore, the e...
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