Introduction
The Office for the Prevention and Investigation of Accidents in Civil Aviation and Rail (GPIAAF) published Safety Study 2021-SS-01 on November 5, 2021. This document, titled "Safety study on general aviation events ALTO – Approach, landing and Take-off Accidents (2011 to 2021)," aims to present information to assist in the prevention of accidents and incidents in national general and light sport aviation.
Study Scope
The study focuses on Approach, Landing, and Take-Off (ALTO) events that occurred between 2011 and 2021. It includes an analysis of selected events, latent conditions, the decision-making process (action or inaction), and consequences. The study also presents main conclusions, though the specific findings are not detailed in the source material.
Content Overview
The document is organized into several sections: a national perspective, selected events, latent conditions, decision-making, consequences, and main conclusions. An annex lists individual ALTO events with details on each occurrence. The glossary defines terms such as Abnormal Runway Contact (ARC), Runway Excursion (RE), and others relevant to the analysis.
Publication Details
The study is published in both Portuguese and English, with the Portuguese text prevailing in case of discrepancies. It was produced by GPIAAF, an independent Portuguese state body responsible for investigating civil aviation and rail accidents and incidents. The study is intended solely for safety improvement and not for apportioning blame or liability.