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Major accidents! Details of the container ship crashing into a famous bridge in the United States were revealed

2024-05-17 09:15

On May 14, local time, the National Transportation Safety Board released the preliminary investigation report of the bridge collision accident in Baltimore, Maryland, and the results of the investigation showed that the "Dali" cargo ship had multiple power outages before hitting the bridge.

Preliminary investigations found that the Dali experienced a power outage about 10 hours before it left the port of Baltimore, when a crew member mistakenly turned off an exhaust valve while at port for maintenance, causing one of the ship's diesel generators to stall, the report said. The backup generator then started automatically, but after a short period of operation, it stopped running due to insufficient fuel pressure, causing another power outage. The crew then adjusted the power configuration, replacing a transformer and circuit breaker system that had been in use for months with one that was active when they left port.

However, the freighter experienced two more power outages while it was in motion. About 4 minutes before the collision and about 1 km from the bridge, all lighting and most of the other equipment on board were de-energized due to an unexpected trip of the circuit breaker. Power was then restored briefly, but when the freighter reached a distance of about 320 meters from the bridge, the power went out again, all three steering pumps stopped working, the crew could not control the direction, and the freighter eventually yawed and hit the bridge.

The U.S. National Transportation Safety Board launched an investigation immediately after the incident and is still investigating the power allocation after the first power outage when the Dali docked at the port, and the potential impact on the power outage while driving. It may take a year or more for the full survey to complete.

Investigators also tested the fuel used by the vessel and found no quality problems, the report said. Before and after the accident, the crew underwent several drug and alcohol tests, and no problems were found.

The FBI launched a criminal investigation in April, and investigators boarded the Dali to collect evidence and find the "black box" that recorded key information about the freighter.

Shortly after leaving the port in the early hours of March 26, the "Dali" lost power and crashed into the "Francis Scott Key" bridge in Baltimore, causing the steel bridge to collapse and eight construction workers on the bridge deck to fall into the water, two of whom were rescued and six others died.

The Port of Baltimore is an important port on the East Coast of the United States, and the bridge collision caused shipping in the port to be blocked. The Port of Baltimore has now opened four temporary lanes and is expected to be fully operational by the end of May. The Maryland state government estimates that the bridge reconstruction will cost between $1.7 billion and $1.9 billion and is expected to be completed in the fall of 2028.

 

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