From time to time, generally when the industry is faced with heightened uncertainty, questions are raised around the aircraft economic life assumptions made by investors and financiers and whether a permanent shift is taking place in the underlying trends surrounding the long-term values ascribed to specific, or even all, commercial jets. This is one such time and, given the extensive level of investment that now exists in the global commercial aircraft fleet and the future requirements of the industry for further sustained funding from lessors and financial institutions, a comprehensive review and analysis of commercial aircraft economic lives and retirement patterns is urgently needed.




