Aeropesca Colombia Flight 221 Aeropesca Colombia Flight 221 Aeropesca Colombia Flight 221 was an internal scheduled passenger flight from Florencia Airport to Neiva Airport in Colombia. On 26 August 1981 it was being operated by a Vickers Viscount turboprop airliner registered in Colombia as "HK-1320" when it collided with Mount Santa Elana, an Andean mountain peak, destroying the aircraft and killing all 50 on board. The investigation by the Colombian authorities concluded the probable cause was "continuing VFR in meteorological conditions below the minimum laid down in the Manual of Colombian air routes". The aircraft was a four-engined Vickers Viscount 745D turboprop airliner registered
Commuter Aircraft Corporation CAC-100 be supplied by four Pratt & Whitney Canada PT6A-65R turboprop engines driving five-bladed Hartzell Propeller constant speed reversible propellers. Production facilities were constructed at Youngstown, Ohio but the project was shelved in 1983 before its first flight. Commuter Aircraft Corporation CAC-100 The Commuter Aircraft Corporation CAC-100 was a 50–60 seat, four-engined, turboprop commuter airliner developed in the United States in the late 1970s and early 1980s.<ref name="JAWA81/82"></ref> The design of the CAC-100 originated from the General Aircraft Corporation GAC-100,<ref name="JAWA70/71"></ref> designed in the late 1960s. The GAC-100 design was enlarged and new technologies incorporated to produce the CAC-100. The proposed