The global Air Transport Used Serviceable Material Market was valued at $7.9 billion in 2024 and is projected to expand at a compound annual growth rate (CAGR) of 4.31% through the forecast period of 2025–2033. This sustained growth trajectory reflects the increasing operational and economic pressures on commercial carriers, MRO providers, and lessors to optimize maintenance expenditure while ensuring airworthiness compliance.
Used serviceable materials (USMs) — which include engines, airframe components, avionics, and auxiliary systems harvested from retired or parted-out aircraft — represent a cost-effective alternative to new original equipment manufacturer (OEM) parts. With new aircraft delivery backlogs at major OEMs extending beyond five years in some categories, airlines and MRO facilities are increasingly turning to the USM supply chain to bridge the gap. This macro tailwind is one of the most powerful demand drivers shaping the market through 2033.
The post-pandemic recovery in global air traffic has been a central catalyst. The International Air Transport Association (IATA) reported that global revenue passenger kilometers (RPKs) surpassed pre-pandemic levels by 2023, accelerating the aging of older-generation aircraft that are now candidates for part-out. Aircraft types such as the Boeing 737NG, Airbus A320ceo, and wide-body platforms like the Boeing 777-200 are increasingly entering part-out programs, generating high-value USM inventory.
From a segment perspective, engine USMs command the largest revenue share, driven by the extraordinarily high cost of new powerplant procurement and the extensive serviceable life of certified engine modules. Component USMs — encompassing landing gear, avionics, and hydraulic assemblies — form the second-largest category by value.
Geographically, North America remains the most mature market, bolstered by a dense ecosystem of part-out specialists, MRO operators, and aviation regulators with well-defined airworthiness directives (ADs) for USM re-certification. Asia-Pacific is the fastest-growing region, driven by rapid fleet expansion and the parallel need for cost-efficient maintenance solutions in emerging aviation markets such as India and Southeast Asia.
Key players including Delta Material Services, AAR Corporation, GA Telesis LLC, and Lufthansa Technik are scaling USM trading and certification capabilities. The competitive landscape is also shaped by the Aviation Aftermarket Services Market dynamics, with consolidation activity intensifying as larger entities acquire part-out specialists to vertically integrate supply chains.
Looking ahead, the market's forward trajectory will be shaped by regulatory harmonization across jurisdictions, digital traceability platforms for USM provenance documentation, and the emergence of sustainability mandates that incentivize circular-economy approaches in aviation — all contributing to a structurally robust demand environment through 2033.