Air Transport USM Market Size Was Valued at USD 8.1 Billion in 2023, and is Projected to Reach USD 12.0 Billion by 2032, Growing at a CAGR of 4.4% From 2024-2032. Used serviceable material (USM) in air transportation consists of reclaiming and repurposing intact aircraft parts and components from aging aircraft. End-users comprise airports, airlines, training facilities, and other service...