I was on the airport without authority and wandered into the military area by accident. This aircraft was delivered to SAS as SE-BDL in 1948, then became XA-MUB in 1959, first with Guest Aerovías de Mexico and later with AeroMéxico. It later ended up with the Mexican Air Force, first as ETP-10001, then TP-103, and finally to the identity seen here. Info taken from the aircraft's log books. This DC-6 was last noted stored at Santa Lucia Air Base in Sep 1993.