Alas Rionegrinas Fairchild Swearingen SA-227-AC Metro III, LV-RBR, (c/n AC-416) at Buenos Aires Aeroparque (AEP) sometime in the 1990's. (Phil Perry Collection)
Metro AC-416 was first delivered to Midstate Airlines of Stevens Point, Wisconsin, USA (near Chicago) as N177MA in 1981 and operated with the commuter airline until its closing in 1989 after which it flew as a company plane for a couple of corporate operators before finally joining SAPSE (Servicios Aereos Patagonicos, S.E.), parent of Alas Rionegrinas as LV-RBR in 1991.
AC-416 operated with Alas Rionegrinas until its closing in 1997 and its last known location was Viedma (VDM) in derelict condition.
Photo of this aircraft operating for Midstate Airlines at Chicago O'Hare (ORD) as N177AM in August 1986: