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failure to initiate the emergency disconnect system until after the
hydrocarbons were past the BOP stack was a possible contributing cause of the
response failure.
The Deepwater Horizon operated a manually‐functioned general alarm
system. If the general alarm of the Deepwater Horizon had been set to
automatically sound when “high‐high” gas alarms sounded in multiple
compartments of the rig, personnel in the pump room likely could have moved
to a location where their chances of survival were greater. The “inhibited”
general alarm system was a possible contributing cause of the response failure.
Transocean’s senior dynamic positioning officer and dynamic positioning
officer were not trained for the events they faced on the bridge on the evening of
April 20, 2010. Transocean’s failure to train the marine crew to handle serious
blowout events was a possible contributing cause in the Deepwater Horizon
incident.
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