Cargo ship that caused Baltimore bridge collapse had power blackouts hours before leaving port NBC New York [Video]

The cargo ship Dali was reported in good condition before it left the Port of Baltimore but had experienced an electrical blackout while undergoing maintenance about 10 hours prior, investigators probing the March collapse of the Francis Scott Key Bridge said in a preliminary report released Tuesday.

The power outage was caused by a crewmember mistakenly closing an exhaust damper, causing the ship’s engine to stall, the report issued by the National Transportation Safety Board said. The ship lost power again and crashed into one of the bridge’s supporting columns shortly after leaving the port on March 26, which brought the bridge down in seconds.

The senior pilot and apprentice pilot on the ship were not told about the previous day’s power outage, the report says.

A full investigation could take a year or more, the agency said.

The board launched its investigation almost immediately after the collapse, which sent six members of a roadwork crew plunging to their …