Scheduled Maintenance and Downtime Cost in Aircraft Maintenance Management
During aircraft maintenance scheduling, operator calculates the budget of the maintenance. Usually, this calculation includes only the costs that are directly related to the maintenance process such as cost of labor, material, and equipment. In some cases, overhead cost is also included. However, in some of those, downtime cost is neglected claiming that grounding is a natural fact of maintenance; therefore, it is not considered as part of the analytical decision-making process. Based on the normalized data, we introduce downtime cost with its monetary value and add its seasonal character. We envision that the rest of the model, which works together with the downtime cost, could be checked with the real life cases, through the review of MRO cost and airline spending in the particular and scheduled maintenance events.
 Dupuy MJ, Wesely DE, Jenkins CS. Airline fleet maintenance: Trade-off analysis of alternate aircraft maintenance approaches. 2011. p. 29-34.
 Eurocontrol by University of Westminster. Innovative cooperative actions of R&D in EUROCONTROL programme CARE INO III. 2008. Retrieved from https://www.eurocontrol.int/eec/gallery/content/public/ documents/projects/CARE/CARE_INO_III/DCI_TDD9-0_Airline_maintenance_marginal_delay_costs.pdf.
 IATA MCTF. Airline Maintenance Cost Executive Commentary - An Exclusive Benchmark Analysis of Maintenance Cost Task Force (MCTF) FY 2013. 2014.
 Hurst, J. D. Operational availability modeling for risk and impact analysis. 1995. Retrieved from http://citeseerx.ist.psu.edu/viewdoc/ download?doi=10.1.1.222.3546&rep=rep1&type=pdf.
 Kumar UD, Crocker J, Knezevic J, El-Haram M, SpringerLink (Online service). Reliability, Maintenance and Logistic Support: A Life Cycle Approach. 2000.
 Saranga H. Opportunistic maintenance using gentic algorithms. Journal of Quality in Maintenance Engineering. 2004;10(1):66.
 Muchiri, K., A., & Smit, K. Application of maintenance interval de-escalation in base maintenance planning optimization. Journal of Enterprise Risk Management. 2009;1(2):63-75.
 Lease Rentals Continue to Sit on Fence. Aircraft Value News. 2011;20(16).
 IATA Corporate Communications. Airline profitability improves with falling oil prices. 2014. Retrieved from http://www.iata.org/pressroom/ pr/Pages/2014-12-10-01.aspx on April 19th 2015.