Abbreviation for Advanced Soviet - One of the 4 major operational divisions of NSA's productionorganization: Combined with GENS into a group.AECAbbreviation for Atomic Energy Commission AERIAL PHENOMENON RESEARCH: THE INDIANA GROUP18 Davis Drive Mt. Vernon, Indiana 47620 Francis L. Ridge (Director) 812-838-3120 / 812-838-9843Publishers of : Indiana UFO Newsletter Founded in 1986 A statewide organization which attempts toimmediately respond to UFO sightings