 After completion of the overhaul, according to Thompson, Moosally took Iowa on a shakedown cruise around Chesapeake Bay on August 25, 1988. Encountering difficulty in conning the ship through shallow water, Iowa, with Moosally at the helm, narrowly missed colliding with the Moinester, Farragut, and South Carolina before, Thompson claims, running aground in soft mud outside the bay's main ship channel near the Thimble Shoals. After one hour, Iowa was able to extricate herself without damage and return to port. Although other US Navy vessels observed Iowa grounded in the mud, the incident apparently was not acted upon by Moosally's superiors. Throughout August and September, Iowa continued with sea trials, then began refresher training in the waters around Florida and Puerto Rico in October.
