Remarks by Jack McKillop: "This aircraft was delivered to Lineas Aereas de Espana (Iberia) of Madrid, Spain, on 8 July 1957 and registered EC-AMP, named "San Juan" and assigned Fleet Number 211. The aircraft was configured to carry 63-passengers overwater and were used on the Madrid-New York route.

By 1961, Douglas DC-8s replaced the Super Connies on routes to North and South America and the Connies were assigned to flights to Spanish West Africa and busy European cities. During the summer of 1963 through 1965, the aircraft was leased to Aviacion y Comercio SA (Aviaco) of Madrid, Spain, for European inclusive tour work with an 80-passenger configuration on flights from Spain to the United Kingdom. In 1964, the aircraft was modified by the addition of a rear cargo door and cargo modifications by Air France at Toulouse, France, although the aircraft continued to fly passengers.

Iberia sold the aircraft to the leasing company International Aerodyne, Inc. of Miami, Florida, USA, in May 1967 and the aircraft was ferried to Miami, placed in storage and assigned the US registration N8021. The aircraft was still in storage in August 1969 but was subsequently sold or leased to an unknown operator.

On 6 June 1970, the aircraft was slightly damaged while landing at La Antigua, Argentina, when the landing gear collapsed. When the police arrived, the aircraft was 95% destroyed by fire and there was no trace of the crew. It is assumed that the aircraft had been involved in smuggling operations.

The US registration was cancelled on 10 July 1970."