On November 26, 2013 it sailed from Tokyo bound for Tacoma, WA and experienced the engine failure south of the Aleutian Islands. It took until December 15 for the tug Koyo Maru to reach the ship, and begin the tow back to Pusan, South Korea. At Pusan, it was totally unloaded and possibly drydocked. Meanwhile containers in Tacoma and subsequent ports were diverted to the following ship, Rotterdam Express.
The ship was repaired and re-entered service January 28, sailing from Pusan and after stops in Japan, sailed from Tokyo once again February 2, reaching Tacoma safely February 13. Since then it has called on Oakland, Los Angeles, Balboa, Manzanillo, Savannah, Norfolk and New York.
The ship was built by Samsung Shipbuilding + Heavy Industry, in Koje, South Korea in 1993 as Essen Express. It was renamed Boston Express in March 2013. A 4639 TEU ship, it measures 53,815 gross tons.