Cargo ship's chief engineer charged in 2024 Francis Scott Key bridge collapse in Baltimore

Prosecutors also filed notice of a “deferred prosecution agreement” with the court, but did not provide details about the terms of that deal. Deferred prosecution agreements are typically used when a defendant has agreed to meet certain conditions — such as providing testimony, or paying restitution — in exchange for the charges against them being dropped.

Prosecutors say in court documents that Deenadayalan was the chief engineer of the container ship when it was in the Port of Baltimore in the days before the deadly bridge collision, and that Deenadayalan willfully failed to notify the U.S. Coast Guard that an improper fuel pump without a backup system was being used to power two of the ship's generators.

The Dali, bound for Sri Lanka, lost power twice in a four-minute span as it moved to sea from the Port of Baltimore, causing it to crash into the Key Bridge in the early hours of March 26, 2024. Investigators say a loose wire in a switchboard likely caused the first power loss that led to its steering failure.

But after regaining power, the ship found itself in trouble again, prosecutors say, because the fuel pump used on the two generators was not designed to automatically restart after the first blackout. That caused a second blackout to occur, and the vessel crashed into a supporting column of the bridge, killing six construction workers who had been filling potholes on the structure. The toll bridge first opened in 1977 and is traveled by millions of cars every day.

The Singapore-based ship operator and another employee were indicted on criminal charges in May, accused of relying on the improper pump and then lying about it to investigators. Synergy Marine Pte Ltd. and Chennai, India-based Synergy Maritime Pte Ltd. and the ship's former technical superintendent Radhakrishnan Karthik Nair, 47, are charged with conspiracy, misconduct causing death, failing to immediately inform the U.S. Coast Guard of a hazardous condition, obstructing the National Transportation Safety Board and making false statements.

A trial in the case against the ship's operator and the technical superintendent has been scheduled for October 2027.

After the indictment, Synergy Marine expressed disappointment and accused the U.S. Justice Department of turning an accident into a crime. Nair’s lawyer, David Gerger, had a similar response, saying in May that his client “thinks about this accident every day, but he certainly did not cause it.”

In April, a $2.25 billion settlement was announced between the state of Maryland, Synergy Marine and Grace Ocean Private Limited, the Singapore-based ship owner. Grace Ocean hasn’t been charged with any crimes related to the collapse.

Earlier this month, a federal judge agreed to postpone a civil trial over the collapse after a flurry of last-minute settlements resolved most of the remaining claims, including deals resolving all pending claims over the deaths of six construction workers.

Virtually all of the unresolved claims are alleging economic losses by businesses and local governments. None of the remaining parties were asking to start the trial as scheduled this week.