U.S. oiler damaged in underwater allision off Oman

(WASHINGTON) — The U.S. Navy replenishment oiler damaged in the Arabian Sea this week after an underwater allision is now in port in Oman, USNI News reported Wednesday.

USNS Big Horn (T-AO-198) entered the port of Duqm, Oman, with the assistance of tugboats on Tuesday afternoon local time. The oiler is now undergoing a repair assessment while the service investigates the cause of the incident that damaged the ship.

Navy officials have not provided a detailed assessment of the damage other than to say there was no apparent leak of fuel from the 42,000-ton oiler. A service official told USNI News this week the oiler had suffered an underwater allision with its stern.

Tugboats assist USNS Big Horn into port in Duqm, Oman, on Tuesday. USNI News photo via Sal Mercogliano

Big Horn likely either grounded or hit an object underwater while operating in the Arabian Sea off the coast of Oman. Photos circulating on social media show flooding in an aft engineering space and a damaged rudder cap.

The Kaiser-class oiler had been assigned to the Abraham Lincoln Carrier Strike Group and tasked with resupplying the embarked air wing and the ship’s escorts. A Navy official told USNI News this week the service was exploring other ways to provide fuel to the air wing and the escorts.

The damage to Big Horn has raised concerns in Congress over the health of Military Sealift Command (MSC) and the Pentagon’s wider logistic force.

“If we cannot fuel our ships, our capabilities will be greatly diminished,” said Sen. Roger Wicker, R-Miss. “Big Horn’s problems also speak to a larger challenge – we are woefully in need of a larger logistics fleet, which is the lifeline for our global military presence. I hope this incident serves as a wake-up call that it is high time to fix our shipbuilding industrial base and support our merchant mariners.”

MSC is considering sidelining up to 17 of its ships to shift the focus of the civilian mariner pool to higher priority platforms and increase the quality of life for the 4,500 civilian mariners.

By Professional Mariner Staff