Int J Performability Eng ›› 2023, Vol. 19 ›› Issue (11): 762-770.doi: 10.23940/ijpe.23.11.p7.762770

Previous Articles    

Optimization of Preventive Maintenance to Maximize the Availability of Aircraft under Resource Constraints

Om Prakash Bohrey* and A. S. Chatpalliwar   

  1. Shri Ramdeobaba College of Engineering and Management, Nagpur, India
  • Contact: *E-mail address: anshbohrey4321@gmail.com
  • About author:Om Prakash Bohrey is a Research scholar at the Mechanical Engineering Department at Shri Ramdeobaba College of Engineering and Management, Nagpur, India. He has varied experience in the maintenance of military fighter aircraft of over 25 years. He is a member of the Aeronautical Society of India. His areas of interest include Reliability, Maintainability, and Aircraft Maintenance engineering.
    A. S. Chatpalliwar is an Associate Professor at the Department of Industrial Engineering at Shri Ramdeobaba College of Engineering and Management, Nagpur, India. He has a teaching experience of over 25 years. He is a member of the Indian Institute of Industrial Engineering (IIIE-LM 9120). His areas of interest include Reliability, Quality, and Maintenance management.

Abstract: The object of the research work was to evolve a methodology to maximize the availability of aircraft. Analysis of repairable systems, including the selection of critical systems, the goodness of fit tests, and optimization of preventive maintenance, was formulated. The rotables that underwent periodic preventive maintenance and preventive replacement, contributing towards major downtime of aircraft were investigated for scope of improvement to maximize availability. The applicability and suitability of data were tested and validated. Estimation of parameters was carried out using Crow’s Maximum Likelihood Estimator. The optimized preventive maintenance model was implemented on one of the aircraft fleets. The proposed methodology of optimizing the preventive maintenance, mean time between failure, and forecast of critical rotables was found effective and resulted in significant improvement in the availability of the aircraft.

Key words: aircraft maintenance, availability, preventive maintenance, resource constraints