Misplaced Wire Label Caused Ship Power Outage, Bridge Collapse: NTSB Findings
Investigators believe a misplaced label on a signal wire during the ship’s construction ultimately caused the Dali to lose power and collide with the Francis Scott Key Bridge. The National Transportation Safety Board (NTSB) has identified the label as the root cause, as it prevented a proper connection in a circuit breaker leading to a blackout. The initial blackout resulted in loss of steering and critical equipment failure, followed by a second blackout when power was not restored quickly enough. The NTSB is expected to vote on the cause of the crash and approve a final report with the collapse projected to cost 4.3 to 5.2 billion with the bridge opening by late 2030.
John Q. Hosedrinker