Why airplanes are still worth millions after they stop flying

When airplanes are retired, many of them end up stripped for parts that are worth millions of dollars. Those parts are in high demand — Boeing and Airbus are behind on deliveries of new aircraft and sold out of planes through the latter part of the decade. The used-aircraft parts trade is a small but important part of global spending on airplane maintenance, repair and overhaul, which Oliver Wyman expects to reach $94 billion this year.