Aircraft Maintenance, Repair & Overhaul in the US: Market Size, Businesses & Forecast 2026

The Aircraft Maintenance, Repair & Overhaul (MRO) industry in the US encompasses the essential inspection, repair, and component rebuilding tasks required to ensure the airworthiness and safety of commercial, military, and general aviation aircraft. According to the Aeronautical Repair Station Association (ARSA) 2025 Market Report, the US civil aviation MRO sector generated $68.6 billion in economic activity in 2025, supported by a workforce of nearly 339,000 workers. The industry is currently experiencing a stable to positive trajectory, driven by strong passenger travel demand and a persistent need to maintain aging commercial fleets. Moving into 2026, the sector's growth is heavily tied t

Industry snapshot

Key public data points

Historical & forecast

Get in touch and our analysts will be happy to help with custom market sizing, deeper segmentation, supplier detail or a bespoke study built for you.

What does the Aircraft Maintenance, Repair & Overhaul in the US industry cover?

The US aircraft MRO industry covers the continuous upkeep, structural modifications, defect rectifications, and total overhauls required for airframes, engines, and airborne components. These specialized services ensure strict compliance with federal aviation safety mandates and prevent operational failures during flight operations. The scope is broadly divided into line maintenance, heavy base maintenance, engine overhauls, and component/avionics repairs.

• •Encompasses both routine airfield line checks and comprehensive facility-based component rebuilds.
• •Differentiated by government classification into specialized field repair support versus factory-level manufacturing conversions.
• •Applies strictly to civil, commercial cargo, passenger, and military aerospace assets operating in US airspace.

Who operates in the industry and how is it structured?

The market structure consists of a mix of independent repair stations, original equipment manufacturers (OEMs) extending into aftermarket services, and in-house airline maintenance departments. According to ARSA data from early 2025, Federal Aviation Administration (FAA) certificated Part 145 repair stations represent the largest employment segment, supporting nearly 189,000 technicians. Commercial airlines account for another major block, directly employing approximately 76,000 maintenance workers.

• •Repair stations and airline maintenance operations account for 78% of the industry workforce and 64% of total economic impact as of 2025.
• •Parts manufacturing and distribution units produce 36% ($24.9 billion) of the sector's total economic footprint.
• •Operations are geographically distributed near major transportation hubs, with high concentrations of mechanics in states like Texas and Florida.

What drives demand in the industry?

Demand for MRO services is directly linked to commercial air traffic volumes, total flight hours, and the average age of active aircraft fleets. As airlines extend the operational lifespans of older aircraft due to modern fleet delivery delays, complex structural and engine maintenance cycles become more frequent. Furthermore, the Bureau of Labor Statistics notes consistent demand stemming from mandatory, calendar-driven safety inspections.

• •Growth in passenger travel directly increases the frequency of required routine line maintenance checks.
• •Delays in new commercial aircraft manufacturing force prolonged utilization of older, maintenance-heavy airframes.
• •Mandatory Federal Aviation Administration safety directives enforce non-negotiable component inspection intervals regardless of economic conditions.

Who are the notable companies in the industry?

The competitive landscape features intense competition among independent MRO providers, airline-affiliated subsidiaries, and aerospace manufacturers vying for long-term fleet service agreements. Major competitors actively offering local and international MRO operations within the US include AAR Corp., Delta TechOps (a division of Delta Air Lines, Inc.), ST Engineering Aerospace, and StandardAero, alongside component support from original manufacturers like GE Aerospace. Companies compete primarily on turnaround time, facility certifications, technical expertise, and labor availability.

• •AAR Corp. operates as a prominent, independent provider of aviation services and MRO solutions to commercial and government clients.
• •Delta TechOps functions as a massive airline-affiliated MRO provider, servicing both internal and third-party commercial fleets.
• •ST Engineering Aerospace maintains significant airframe maintenance capacity across major facilities in the United States.
• •StandardAero stands as a leading provider focused extensively on comprehensive engine and component overhaul services.

What are the recent trends and outlook?

The industry outlook is shaped by an accelerating transition toward predictive maintenance technologies and digital twin modeling to forecast part failures before they occur. However, the sector faces headwinds from persistent skilled-labor constraints, as older technicians retire faster than new mechanics graduate from FAA-approved programs. Bureau of Labor Statistics projections for 2024-2034 indicate a steady career outlook for aircraft mechanics, reinforcing the long-term necessity of the profession.

• •Increasing integration of artificial intelligence and advanced sensor data analytics to transition from reactive to predictive repair models.
• •Persistent industry-wide recruitment challenges due to the highly specific certifications required for incoming technicians.
• •Supply chain constraints regarding specialized aerospace parts continue to prolong total turnaround times at repair stations.

How is the industry regulated?

The US aircraft MRO industry operates under some of the strictest safety regulations of any domestic sector, overseen primarily by the Federal Aviation Administration (FAA). Facilities must secure and maintain specific certifications, most notably FAA Part 145 repair station approval, to legally perform maintenance on civil aircraft. Personnel must also satisfy rigid educational and practical requirements to hold individual Airframe and Powerplant (A&P) mechanic ratings.

• •FAA Part 145 regulations dictate the exact facility standards, tool calibration, and quality control systems required for repair operations.
• •Individual technicians must comply with strict training benchmarks to maintain active FAA certifications under Title 14 of the Code of Federal Regulations.
• •Any major alteration or component rebuilding task requires formal documentation and authorized sign-offs to uphold mandatory airworthiness directives.

Government, statistical and trade sources used for this Claight analysis.

• Aeronautical Repair Station Association (ARSA) 2025 Market Report ·
• Bureau of Labor Statistics Occupational Outlook Handbook 2024 ·
• Federal Aviation Administration (FAA) Title 14 Code of Federal Regulations ·
• US Census Bureau North American Industry Classification System (NAICS) 2022