Aero-Service is a Congolese airline based in the Republic of the Congo, operating domestic and regional air services. The carrier has historically served routes connecting Brazzaville with other cities within the country and neighboring African nations. The airline has operated under the IATA code BF and ICAO code RSR, with the radio callsign CONGOSERV. It has played a role in providing air connectivity in a region where road infrastructure can be limited, making air travel an important mode of transport. Aero-Service has faced operational challenges common to smaller African carriers, including fleet limitations and financial constraints. Its operations have been intermittent over the years, reflecting the difficult aviation market in Central Africa.