Defense Secretary Frank Carlucci should receive a report this week from a Navy board that investigated the downing of an Iranian passenger airliner by the USS Vincennes, the Pentagon says. Navy Cmdr. Mel Sutton confirmed on Sunday that the panel has completed its work, but he refused to discuss a published report saying the board recommended disciplinary action against only one officer aboard the ship. All 290 people aboard the plane were killed when it was shot down over the Persian Gulf on July 3. The Vincennes had misidentified the plane as an F-14 fighter. Sutton refused to discuss a story in Sunday's editions of The Washington Post, which said the board's report calls for disciplining only the ship's operations officer, who has not been identified publicly.