 In October 1984, the C-130D aircraft were replaced by eight new C-130H models, of which four were LC-130s (ski equipped).In 1988 the 109th had been notified that, almost overnight, one of the Distant Early Warning (DEW) Line radar sites that it supported in Greenland was going to be shut down.The other sites would soon follow and the 109th would be largely out of business because its main mission had ended.