Military Sealift Command oceanographic survey ship USNS John McDonnell was delivered to the Navy Inactive Ships Program in Pearl Harbor, Hawaii, for deactivation Aug. 25. Following the deactivation, MSC retains six Pathfinder-class oceanographic survey ships capable of surveying coastal regions and performing full ocean surveys. Construction of a new, more-capable survey ship, T-AGS 66, will start in October. McDonnell's deactivation comes as part of the effort to streamline survey operations. Unlike the Pathfinder class, which is capable of conducting both deep- and shallow-water scans, McDonnell was only equipped with the sensors to conduct shallow-water surveys.