Airline first airline established in the Americas), Argentina with Aerolineas Argentinas, Chile with LAN Chile (today LATAM Airlines), Brazil with Varig, Dominican Republic with Dominicana de Aviación, Mexico with Mexicana de Aviación, Trinidad and Tobago with BWIA West Indies Airways (today Caribbean Airlines), Venezuela with Aeropostal, Puerto Rico with Puertorriquena; and TACA based in El Salvador and representing several airlines of Central America (Costa Rica, Guatemala, Honduras and Nicaragua). All the previous airlines started regular operations well before World War II. Puerto Rican commercial airlines such as Prinair, Oceanair, Fina Air and Vieques Air Link came much after the second world
Varig Flight 254 (270°). The Boeing 737 was not equipped with INS, using only automatic direction finders (ADF) and VOR. Months after the accident, the flight plan VARIG 254 used was shown to 21 pilots of major airlines in the world during a test conducted by the International Federation of Air Line Pilots' Associations (IFALPA). No fewer than 15 pilots committed the same mistake that the VARIG flight 254 crew had made. After the flight 254 accident, VARIG would install Omega navigation systems in their aircraft. Also, there were several contributing factors to the accident: the pilot did not realise he should be