NTSB investigates Francis Scott Key Bridge collapse due to container ship Dali's electrical system failure.

The National Transportation Safety Board (NTSB) is investigating the cause of the collapse of the Francis Scott Key Bridge in March, involving a massive container ship, the Dali, which lost power while approaching the bridge. The NTSB has now focused on a small electrical component as a possible cause for the entire ship's electrical system failure, which could provide crucial insights into preventing similar incidents in the future.