https://iaeme.com/Home/journal/IJASE 12 editor@iaeme.com International Journal of Aerospace Engineering (IJASE) Volume 2, Issue 1, January-June 2024, pp. 12-20, Article ID: IJASE_02_01_002 Available online at https://iaeme.com/Home/issue/IJASE?Volume=2&Issue=1 Journal ID: 2072-5791 © IAEME Publication DEVELOPMENT OF AN EXPERT SYSTEM FOR AIRCRAFT FAILURES CAUSES, PREDICTIONS, AND REMEDIES Fasasi Semiu. T Graduate Student, Department of Mechanical Engineering, Colorado State University, CO, 80523, USA Ajifowowe Iyanu Graduate Student, Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, South Korea Adeyemo Ayobami Graduate Student, Department of Information Engineering, Computer Science and Mathematics, University of L’Aquila ,2, 67100 L’Aquila AQ, Italy Ajayi Abiola Graduate Student, Department of Mechanical Engineering, Colorado State University, Fort Collins, CO, 80523, USA ABSTRACT Aircraft need to be constantly maintained, repaired, and upgraded to ensure smooth operations and sustain the pavements in an adequate condition. Early detection of failures or faults and frequent maintenance in an aircraft system will prevent aircraft failures and ensure safety. Hence, there is a need to integrate advance technology system into the maintenance of aircrafts. This article thereby provides and develops an expert system that predicts failures, causes of failures, and provide remedies for failures in aircrafts. In the study, probability tree was used to predict faults in selected aircrafts (Boeing Aircraft (Year: 2016), and Airbus (year: 2014) Model (BX2V3)) and diagnosed with the developed expert system, modelled with C++ programming Language to detect aircraft faults and provide remedies for various diagnosed faults. Keywords: Expert System, Aircrafts, Aviation, Aircraft Faults, Diagnosing Aircraft, Reme- Dies, Aircraft Solutions, Repair and Remedies, Artificial Intelligence, Modeling, Prediction, Maintenance, Aircraft Maintenance, GUI, C++