A simulation-based method for inventory ownership planning of aircraft spare engines and parts

An integrated life-cycle maintenance modeling and simulation framework for aero engine fleet management decision support

“…So accurate engine shop visits forecast and fleet spare engines planning is of great importance not only from the operational perspective, but also from the financial point of view to avoid unnecessary excess in spare engine ownership that can be expensive for the company. 10,11 However this can be an extremely challenging task, considering the various influencing factors in a highly dynamic environment, such as engine aging status, environmental and operating conditions, maintenance strategy, repair shop capacity as well as their intricate interactions among these factors. Thus, a good understanding of the problem is required to accurately predict shop visit events and spare engine planning for efficient fleet management.…”

“…This work demonstrated the economic value of advanced condition monitoring for improved spare part demand forecasting and better decision-making for long-term maintenance contracts. Scalise et al 11 presented a simulation-based method for fleet engine spare ownership levels planning, which can provide estimations of the minimum spare ownership required to meet given service levels as well as other performance metrics based on aircraft out-of-service (OTS) events, such as number and duration of OTS events.…”