Dated 1 October 1971, this page instructs fighter aircrews on procedures for an unscheduled landing at an airfield outside USAF control - such as Phnom Penh, Cambodia - detailing exactly what information to relay to 7th Air Force Tactical Air Control Center, call sign 'Blue Chip.' The reference to Cambodian airfields underscores the expanding geography of the air war in Southeast Asia during this period, as F-4 Phantom crews based at Da Nang flew missions across increasingly contested borders. Project: 218454