Reis, CátiaTecedeiro, MiguelPellegrino, PollyannaPaiva, TeresaMarôco, João P.2022-01-072022-01-072021Front Psychol. 2021 Dec 16;12:725099http://hdl.handle.net/10451/50737Copyright © 2021 Reis, Tecedeiro, Pellegrino, Paiva and Marôco. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.From its initial conceptualization as emotional exhaustion, cynicism, and reduced personal efficacy for the help professions, burnout has received increasing attention in modern times, especially after the 2019 WHO's inclusion of this syndrome in the ICD-11 list. Burnout can be measured using several psychometric instruments that range in dimensionality, number of items, copyrighted, and free use formats. Here, we report the psychometric properties of data gathered with the Oldenburg Burnout Inventory (OLBI) in a sample of Portuguese Aircraft maintenance technicians. As far as we know, this is the first study addressing the burnout syndrome in this occupational group. Data gathered with the OLBI displayed good evidence of validity related to internal structure, to other variables, with good evidence of reliability. We showed that burnout significantly correlated with mental and physical fatigue emphasizing the vital critical role that these variables play with safety in the aviation industry.engOldenburg burnout inventoryAviationBurnoutOccupational stressReliabilityValidityjournal article10.3389/fpsyg.2021.7250991664-1078