Background
The YAKSTARS Aerobatic Team, a civilian aerobatic team operating Spanish civilian registered aircraft with civilian pilots, participated in the Beja Air Show 2024 (BAS24), an event organized by the Portuguese Air Force at Air Base 11 (BA11) in airspace under military control.
Investigation
Following the accident, a joint investigation committee was formed under national legislation, comprising the Gabinete de Prevenção e Investigação de Acidentes com Aeronaves e de Acidentes Ferroviários (GPIAAF) and the Comissão Central de Investigação (COCINV) from the Air Force. The investigation was coordinated by COCINV, in accordance with Article 13 of Decree-Law 318/99.
The occurrence was reported through BA11's Disclosure of Occurrence No. 25/2024. GPIAAF issued the aircraft accident information notice (case GPIAAF 2024/ACCID/01) and the corresponding Notification to International Authorities.
The investigation was conducted as a technical process for the sole purpose of accident prevention, in line with international standards and EU regulations. The final report was drafted and sent for comments to the following entities: ANAC (Portugal), CIAIAC (Spain), EASA (EU), and the Operator.
The report emphasizes that its aim is to collect lessons to help prevent future accidents, and that its use for other purposes may lead to incorrect conclusions.