A National Transportation Safety Board (NTSB) investigation into the March 26, 2024 collision involving the containership Dali and the Francis Scott Key Bridge found that a single loose wire in the ship's electrical system caused a circuit breaker to unexpectedly open and led to two vessel blackouts.
March 26, 2024
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temporal
Causal finding from the NTSB investigation into the 2024 bridge collapse.
The NTSB found that wire-label banding prevented a wire from being fully inserted into a terminal block spring-clamp gate on the containership Dali, causing an inadequate electrical connection.
March 26, 2024
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temporal
Technical failure mode identified by the NTSB in the shipboard electrical system.