Aeronáutica Agrícola Mexicana SA (AAMSA) was an aircraft manufacturing company in Mexico from 1971 to 1984. History AAMSA was formed in 1971 as a joint venture between Rockwell International (30%) and Industrias Unidas SA (70%) to manufacture Rockwell's range of agricultural aircraft at a factory in Pasteje. Products The company's most noteworthy product was the A9B-M Quail, a development of the CallAir A-9, which was produced until 1984. About 40 units were produced. References Multinational aircraft manufacturers Aircraft manufacturers of Mexico Manufacturing companies established in 1971 Joint ventures Mexican companies established in 1971 Defunct manufacturing companies of Mexico