x     A Royal Air Force (RAF) Airbus A400M Atlas transport aircraft operated on April 12 between Mount Pleasant base in the Falkland Islands and Carrasco airport in Montevideo, switching off its transponder during the return leg to the islands, rendering it invisible to civilian tracking systems, according to the specialized outlet Escenario Mundial, which identified the aircraft as registration ZM413 operating flights RRR4000 (outbound) and RRR4001 (return). Former Argentine ambassador to the