Aviação Agrícola Manain Airport (ICAO: SDF9) is a small private aerodrome located in or near Boa Vista, the capital of Roraima state in northern Brazil. The facility primarily serves agricultural aviation operations, supporting crop-dusting, aerial application, and related agribusiness activities common in Brazil's interior regions. As a non-commercial, specialized aerodrome, it does not serve scheduled passenger flights and lacks the infrastructure typical of public airports. Detailed operational records for this facility are limited in publicly available sources.