Introduction Aerodrome safety is an essential part of overall air security, as it concerns such cornerstone procedures as take-off and landing. A considerable number of accidents happen during those, so ensuring that the airside is secure is crucial. For instance, a major accident in Brazil occurred due to inadequate safety measures exacerbated by weather conditions and the human factor. Although the tragic situation prompted a response from the airport to enhance security, the issue persisted until as recently as 2020. The following report will attempt to analyze the circumstances of the original accident, investigate the current state of affairs, and propose changes that would lead to further improvements. Objectives  1. Analyze the airport conditions present during the accident (2007) and discuss how they contributed to its outcome.  2. Assent the current situation at São Paulo–Congonhas Airport and compare it to 2007.  3. Suggest improvement measures based on the obtained information and identify Summary During the accident, the airport had major security issues concerning the maneuvering area, the lighting, and the layout. First of all, the runways were put into operation prematurely, without the grooving, although the original intent was to prevent situations similar to what happened by reducing water accumulation (Aviation Safety Network, 2021, para. 6). Pavement grooving almost eliminates hydroplaning, so its absence could have contributed to the vehicle’s excursion (Pasindu, 2020). Another significant factor is luminosity, which was also absent during the landing (Aviation Safety Network, 2021, para. 28). As São Paulo is situated in the Southern Hemisphere, summer months have shorter day longevity, which could be true for July 17, when the accident happened. At 18:54, the luminosity was necessary for the pilots to make weighted decisions regarding the landing procedure. The airport also had an issue with a petrol station being situated close to the warehouse with which the plane eventually collided. Such an oversight is a critical safety point, as incidents involving vehicle excursions are not a rare occurrence (Kuklev et al. , 2019). Thus, the aerodrome conditions considerably contributed to the circumstances surrounding the accident. As mentioned, other factors could have affected the outcome, but they seem secondary to the state of the aerodrome security, as maintaining it was crucial in preventing the disaster. For instance, the weather conditions on that day were adverse, and the runway was wet as a result (Aviation Safety Network, 2021, para. 4). Meanwhile, it appears that there were no issues until the moment of landing, so the environmental factor could not be as significant as the pilots’ and the infrastructure’s condition. The former was apparently in psychological distress due to the incomplete runway and the absence of guidance, causing them to make the wrong assessment of the situation. Therefore, it is likely that under different circumstances, their action could have been more organized. Moreover, the airport had several fatal accidents before the one under consideration, so it is sensible to attribute the brunt of the responsibility to the inadequate s