 Its Brazilian subsidiary NYRBA do Brasil was later renamed as Panair do Brasil.Pan Am also partnered with Grace Shipping Company in 1929 to form Pan American-Grace Airways, better known as Panagra, to gain a foothold to destinations in South America.In the same year, Pan Am acquired a controlling stake in Mexicana de Aviación and took over Mexicana's Ford Trimotor route between Brownsville, Texas and Mexico City, extending this service to the Yucatan Peninsula to connect with Pan Am's Caribbean route network.