ANNAPOLIS, Md. — The loss of electrical power from a loose wire caused a huge cargo ship to lose propulsion and steering before crashing into Baltimore’s Francis Scott Key Bridge, causing it to collapse last year and kill six construction workers, National Transportation Safety Board officials said Tuesday.

The board approved the findings and a set of recommendations to prevent similar tragedies during a hearing in Washington. Investigators managed to identify one loose wire out of thousands on the container ship called the Dali. The label on the wire slid down too close to the end and prevented it from being fully inserted into the terminal.

The board also found the crew didn't have enough time to recover propulsion and avoid collision because the Dali was so close to the bridge when it

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