Automatic Alarm System Was Disabled Before Deepwater Horizon Blast


Transocean RIG logoThe U.S. Coast Guard and the Bureau of Ocean Energy Management Regulation and Enforcement are investigating events that occurred before the BP blast.

Workers who survived the blast have filed suit against Transocean Ltd. (RIG), the company that owned the rig. Michael Williams, a rig worker on the Deepwater Horizon, filed suit against Transocean in federal court in New Orleans, April 29. Williams identified several safety violations aboard the Deepwater Horizon.

The critical safety procedure that was ignored was the automatic alarm system. The system sometimes set off false alarms. To avoid this, the alarm was "inhibited," which means it was placed on the manual setting. On the night of the blast, the manual alarm never sounded. The company's defense is that 115 of the 126 persons aboard the rig got off safely.

A second critical deficiency was that minutes before the blast, emergency power didn't come on, communications systems went down, systems meant to shut down the engines before they could spark an explosion didn't do so and the rig's Emergency Disconnect System, which was supposed to shut down the well and disconnect the rig so it can float free, didn't work.

In addition, the rig was equipped with backup generators. Testimony by Stephen Bertone and Michael Williams described how they tried to start the generators but they wouldn't start. Bertone said: "I hollered out. 'That's it. Abandon ship. Let's go.'"

Other evidence reviewed by the Wall Street Journal indicates that Transocean knew about this problem before the blowout. It had tested the "blowout system." Records indicate It took 14 minutes instead of only one minute and 40 seconds, as prescribed for the test.

One proposal is that a federal regulator be on board each rig. Should this be done?

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