Maintenance, repair and overhaul

Aircraft maintenance is the overhaul, repair, inspection or modification of an aircraft or aircraft component.

Maintenance may include such tasks as ensuring compliance with Airworthiness Directives or Service Bulletins. The maintenance of aircraft is highly regulated, in order to ensure safe and correct functioning during flight. National regulations are coordinated under international standards, maintained by bodies such as the International Civil Aviation Organization (ICAO). The maintenance tasks, personnel and inspections are all tightly regulated and staff must be licensed for the tasks they carry out.

The Maintenance, Repair, Overhaul (MRO) Market was US$135.1 Billion in 2015, three quarters of the $180.3 B aircraft production market. Of this, 60% is for civil aviation : air transport 48%, business and general aviation 9%, rotorcraft 3% ; and military aviation is 40% : fixed wing 27% and rotary 13%. Of the $64.3 Billion air transport MRO market, 40% is for engines, 22% for components, 17% for line, 14% for airframe and 7% for modifications. Its is projected to grow at 4.1% per annum till 2025 to $96B.

Airliner MRO should reach $74.3 Billion in 2017 : 51% ($37.9B) single-aisles, 21% ($15.6B) long range twin-aisles, 8% ($5.9B) medium range twin-aisles, 7% ($5.2B) large aircraft, 6% ($4.5B) regional jets as turboprop regional airliners and 1% ($0.7B) short range twin-aisles. Over the 2017-2026 decade, the worldwide market should reach over $900 billion, led by 23% in North America, 22% in Western Europe, and 19% in Asia Pacific.

In 2017, of the $70 billion spent by airlines on maintenance, repair and overhaul (MRO), 31% were for engines, 27% for components, 24% for line maintenance, 10% for modifications and 8% for the airframe; 70% were for mature airliners (Airbus A320 and A330, Boeing 777 and 737NG), 23% were for “sunset” aircraft (MD-80, Boeing 737 Classic, B747 or B757) and 7% was spent on modern models (Boeing 787, Embraer E-Jet, Airbus A350XWB and A380).

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Wikipedia