Study Framework
The Gabinete de Prevenção e Investigação de Acidentes com Aeronaves e de Acidentes Ferroviários (GPIAAF), the Portuguese civil aviation and rail safety investigation body, published a safety study focusing on general aviation events. The study, designated as Safety Study – ALTO (Approach, Landing and Take-Off), covers occurrences that took place between 2011 and 2021. Its primary objective is to present information that assists in the prevention of accidents and incidents in national general and light sport aviation.
Scope and Content
The study examines a series of selected events, listing them in Annex I, which includes specific occurrences identified by their occurrence numbers and aircraft registrations. The table of contents indicates that the study addresses national perspectives, latent conditions, decision-making processes (action or inaction), and consequences. It also outlines main conclusions derived from the analysis.
Terminology and Units
Throughout the study, units and numbers follow the International System of Units (SI) and relevant Portuguese standards. When aeronautical conventions differ, the commonly used unit is presented alongside its SI equivalence. Technical terms and abbreviations are explained in an included glossary.
Publication Details
The document was published on November 5, 2021, with document ID 2021-SS-01. It is presented bilingually in Portuguese and English, with the Portuguese version prevailing in case of discrepancies. The cover photo is credited to Chung Ho Leung.
Notes
This safety investigation was conducted solely for accident prevention purposes and does not aim to apportion blame or liability. The study is available from GPIAAF, and reproduction with appropriate acknowledgement is permitted for non-commercial uses.