Alaskan oil spill due to power problems
100.com - Thursday 29th July, 2010 (Big News Network.com (photo, Big News Network))
 A power failure contributed to a 4,500-barrel oil spill in the US in May.
The operator of the trans-Alaska pipeline system, an 800 mile long oil carrying system, has said a report has shown the power failure occurred during a planned shutdown, which caused valves to open.
With the valves open, an oil overflow occurred from a storage tank to a containment area.
According to the report the spill was made worse because workers became so focused on restoring power that they were unable to anticipate the tank overflow.
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