Crew trapped on Baltimore ship as investigation continues into power blackouts that caused Key Bridge collapse

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Baltimore Ship News

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The Dali ship suffered four blackouts in the hours before it crashed into Baltimore's Key Bridge, though three of them are yet to be explained. Here's what we know about the problems that unfolded before the disaster.

The Dali container ship experienced a near-perfect storm of calamities before it struck Baltimore's Francis Scott Key Bridge in March, killing six people.For example, the National Transportation Safety Board described four power failures that beset the 300-metre ship.

A backup generator came on, but insufficient fuel pressure soon caused that generator to fail, resulting in a second blackout. It's unclear why the fuel pressure dropped.They switched from one transformer and breaker system that had been in use for several months to another configuration.The third outage struck hours later after the ship had left the Port of Baltimore and was navigating the Patapsco River.

One of the pilots ordered the rudder turned, but since the main engine remained down, there was no propulsion to assist with steering, the report said.The reason behind one power outage is known — the crew's failure to close the exhaust damper. He compared this move to putting on a pair of shoes that you haven't worn in a long time that have become "hard and stiff".

"Anybody who's ever been around ships knows that machinery fails at inopportune times," Mr Martin said.

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