Background
The Gabinete de Prevenção e Investigação de Acidentes com Aeronaves e de Acidentes Ferroviários (GPIAAF) is the Portuguese state body responsible for investigating civil aviation and rail safety occurrences. Operating independently from safety authorities and regulators, its mission includes identifying the causes of accidents and serious incidents and issuing safety recommendations. The GPIAAF published a safety study focusing on general aviation events that occurred between 2011 and 2021.
Study Scope
The study, titled "Safety study on general aviation events ALTO – Approach, landing and Take-off Accidents (2011 to 2021)", analyzes occurrences categorized as approach, landing, or take-off events. It aims to present information to assist in the prevention of accidents and incidents in national general and light sport aviation. The study covers multiple events, which are detailed in Annex I of the document. It includes an analysis of latent conditions, the decision-making process (action or inaction), and consequences.
Key Findings and Structure
The report is organized into seven main sections plus an annex. Sections address the national perspective, selected events, latent conditions, decision-making processes, consequences, and main conclusions. The annex provides detailed descriptions of individual ALTO events. The study notes that abbreviations and technical terms are explained in a glossary. It is published in both Portuguese and English, with the Portuguese text prevailing in case of discrepancies.
Publication Details
The study was published on November 5, 2021, under document ID 2021-SS-01. It is available from the GPIAAF, which operates independently from safety authorities and regulators. The document control information indicates it is a safety study, not an accident investigation report.