Cargo ship experienced electrical outage 10 hours before departing then lost power again before collision, preliminary report saysInvestigators examining the March collapse of the Francis Scott Key Bridge in Baltimore said in a preliminary report on Tuesday the cargo ship Dali experienced an electrical blackout about 10 hours before leaving the port of Baltimore while undergoing maintenance.The power outage was caused by a crew member mistakenly closing an exhaust damper, causing the ship’s... Read this story