With the growing trend of urban air traffic, aircraft are becoming smaller and more reliant on software. As a result, safety analysis techniques and standards, which have traditionally focused on ARP4761, the aircraft safety evaluation process, must e...
With the growing trend of urban air traffic, aircraft are becoming smaller and more reliant on software. As a result, safety analysis techniques and standards, which have traditionally focused on ARP4761, the aircraft safety evaluation process, must evolve to incorporate a software-centered approach. In this paper, we propose how to link STPA method to FTA and FMEA for safety analysis in air mobility, which is a software-intensive system. To assess the feasibility and effectiveness of this approach, we conducted a safety analysis case study focusing on the collision avoidance software of a small aircraft. The results of the study confirmed the effectiveness of linking STPA, FTA, and FMEA methods and enabled the derivation of safety requirements.