The 6,000th B-24 Liberator Bomber is hauled out of Willow Run Bomber Plant, circa September 1944 Year 1944 Rights Held By Donated by the Ann Arbor News. © The Ann Arbor News. Copyright Copyright Protected Photo Subjects Willow Run Bomber Plant World War II Airplanes B-24 Bombers Old News Ann Arbor News Willow Run (Mich.) Willow Run Airport