owadays, the Instrumental Landing System (ILS) allows the civil aviation to do precision approaches at the main airports. The high cost of this system prevent the secondary airports to buy it and, as a consequence, restricts the airport operational development. The EGNOS (SBAS) system, developed by EUROCONTROL, tries to avoid this problem providing integrity position monitoring to the current GNSS systems. This project has as objective to study different types of approach availability at the new Lleida Airport.