The 3 Amigos - Fins 687/689/690.
The aircraft are 767-3YO's.
687 was built for Spanair in 1991 and acquired by AC in 2002.
689/690 were built for Asiana in 1993 and flew for Iberia, Kenya, and acquired by AC in 2005.
I can only assume that 3 Amigos was the nickname given these aircraft given the Spanair/Spanish connection - fin 687, being the first of this type acquired.
The 2 A-319's recently returned from Mexicana will probably be known as "Los Dos Bambinos"

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