Small craft suspected to be from the Iranian Revolutionary Guard Navy (IRGCN), maneuvers in close proximity of Ingraham.
On 6 January 2008, the destroyer Hopper, the guided-missile cruiserPort Royal, and the frigate Ingraham were entering the Persian Gulf through the Strait of Hormuz when five Iranian motor boats approached them at high speed and in a reportedly threatening manner. The American ships had been in the Arabian Sea searching for a sailor who had been missing from Hopper for one day. The U.S. Navy reported that the Iranian boats made "threatening" moves toward the U.S. vessels, coming as close as 200 yards (180 m). The U.S. Navy ships received a radio transmission saying, "I am coming to you. You will explode after few minutes." While the American ships prepared to open fire, the Iranians abruptly turned away, the U.S. Navy officials said. Before leaving, the Iranians dropped white boxes into the water in front of the American ships. The American ships did not investigate the boxes. Officials from the two countries differed on their assessments of the severity of the incident. The Iranians claimed that they were conducting normal maneuvers, whereas American officials claimed that an imminent danger to American naval vessels existed.
After returning from her final deployment in October 2014, Ingraham was decommissioned on 12 November 2014 at Naval Station Everett. Following decommissioning, she was towed to Puget Sound Naval Shipyard (PSNS), located at Naval Station Kitsap, in Bremerton, Washington to await scrapping.