Commercial Aircraft Engine MRO Services Market

Swapping a single high-pressure compressor rear hub on a PW1100G geared turbofan costs USD 132,850 by the FAA’s own estimate, and RTX told investors in a Form 8-K exhibit dated 11 September 2023 that 600 to 700 of those engines would be pulled for shop visits between 2023 and 2026 to inspect powder-metal parts. That bill, repeated fleet-wide, is the commercial aircraft engine MRO services market. Douglas Insights puts 2025 revenue at USD 61.79 billion, the product of 11,206 engine shop visits and an average USD 5.514 million of revenue per visit. Revenue reaches USD 116.58 billion by 2035, a 6.55% annual revenue CAGR made of 2.22% growth in visits and 4.24% growth in revenue per visit. The work belongs to our aircraft interiors and MRO research and follows the Douglas Insights research methodology.

Why are PW1100G and LEAP removals pushing commercial engine shop visits above plan?

New-generation removals add 2.63 points a year to engine shop-visit growth, more than the whole 2.22-point net volume leg of the commercial aircraft engine MRO services forecast. Four separate drivers sit behind that number, and each one is counted in visits.

LEAP is the largest. Safran delivered 1,802 LEAP engines in 2025, up 28% on 1,407 a year earlier, and IATA’s 24 June 2026 engine MRO study counts 600 to 800 LEAP shop visits in 2025 rising past 5,000 a year by 2040. Douglas Insights counts 840 LEAP engine shop visits in 2025 and 3,400 in 2035. That ramp alone contributes 2.07 points of the volume leg. GE Aerospace reported LEAP internal shop-visit volume up 27% in 2025, so the curve has already turned.

The geared turbofan is the second driver, and the 11 September 2023 RTX disclosure is its origin. The 600 to 700 accelerated PW1100G removals came on top of normal wear, and IATA counts 648 GTF-powered aircraft on the ground in March 2025, 28% of that fleet. GTF engine shop visits run near 1,000 in 2025 and climb to 1,700 by 2035 as the fleet matures, adding 0.56 points. Pratt & Whitney booked a 21% rise in commercial aftermarket sales in the fourth quarter of 2025 alone. The share of heavy PW1100G repair work was 14 percentage points higher year on year in the second quarter of 2026, so GTF visits are also getting deeper.

Widebody engines are the third driver. GE90/GEnx visits rise from 1,020 to 1,560 (0.44 points) and Trent visits from 1,596 to 2,180 (0.47 points). Rolls-Royce inducted 517 major Trent refurbishments in 2025 against 430 in 2024, and GE says 70% of the GE90 fleet has not yet seen its second shop visit. Each widebody engine visit is worth more than twice a narrowbody one, so these 0.91 points carry outsized dollars.

Work scope is the fourth driver, and it sits in the price leg rather than the visit count. Revenue per engine shop visit grows 4.24% a year: about 3.47 points from parts and labour escalation inside each family, and 0.77 points from the mix shifting toward LEAP, GTF and widebody engines. Safran’s spare-parts revenue rose 17.6% in dollar terms in 2025, driven mainly by CFM56, and GE’s spare-parts revenue grew more than 25%. Those are engine-parts price and content gains, not fleet growth, and they explain why engine MRO revenue outruns visits.

What is commercial aircraft engine MRO services, and which jobs sit inside the boundary?

Commercial aircraft engine MRO services is the USD 61.79 billion business, in 2025, of maintaining, repairing and overhauling the turbofans on airline jets: 11,206 engine shop visits plus the module repair, parts and on-wing work attached to them, from borescope inspections to replacing the life-limited part stack.

Four service lines make up the value: Parts and materials, Overhaul and performance restoration, Module and component repair and On-wing services. Seven engine family groups are modelled: CFM56, LEAP, V2500, PW1100G GTF, GE90/GEnx, Trent and Other turbofans, the last covering CF34, CF6, PW4000 and smaller fleets. By aircraft class the scope splits into narrowbody, widebody and regional jet engines. By provider type it splits into the OEM network, the airline-affiliated shop and the independent MRO. Narrowbody engines take 5,440 of the 2025 visits. Turboprops, APUs, business and military engines, new engine sales and airframe checks are out. Test cells are sized in the Aviation Test Equipment Market report, and thermal hardware in the Aircraft Engine Cooling System Market study.

Which service line makes the money in an engine shop visit: parts, labour or repair?

Parts and materials earn 52.8% of commercial aircraft engine MRO services revenue, USD 32.63 billion in 2025, because new blades, vanes and life-limited discs dominate every invoice.

Parts and materials hold USD 32.63 billion because material makes up 60% to 70% of a typical shop-visit bill, and OEM list prices rise every year; the line grows 6.71% to USD 62.46 billion. Overhaul and performance restoration labour is worth USD 15.20 billion and grows a slower 5.88%, since labour hours per visit rise less than parts prices. Module and component repair is the fastest-growing line at 7.86%, from USD 9.21 billion to USD 19.62 billion. Repairing a blade instead of buying a new one is the only quick answer to parts scarcity, and IATA’s June 2026 study names repair solutions as its first recommendation. On-wing services, mostly borescope inspections and blade blending that defer a removal, earn USD 4.76 billion and grow 5.12% to USD 7.84 billion.

Which bottlenecks keep engine shops from clearing the GTF and LEAP queue?

Retiring legacy engines remove 1.32 points from shop-visit growth in commercial aircraft engine MRO services, and parts and labour bottlenecks threaten another 0.92 points in the slower case.

Legacy run-off is the built-in drag. CFM56 visits peak near 2,200 in 2025, according to Willis Lease Finance’s first-quarter 2025 presentation filed with the SEC, and fall to 1,350 by 2035; V2500 visits fall from 1,400 to 820. Those two families take 0.69 and 0.47 points off volume, and Other turbofans take 0.16.

Parts supply is the binding one. Hot-section castings come from a handful of qualified suppliers, who feed new-engine lines first. JetBlue has cited 200 to 300 days for some Pratt engine shop visits, and short-term engine lease rates rose to above USD 6,500 a day from about USD 5,000 in 2022-23. Douglas Insights models a slower case in which shortages cap inductions and cut engine shop-visit growth from 2.22% to 1.30%, removing 0.92 points.

Technician supply is the third limit. MTU Maintenance runs 1,500 engines a year with more than 7,000 engine specialists, roughly 4.7 people per annual visit, and licensed powerplant staff take years to train; the Aviation Maintenance Training Market report sizes that pipeline. Labour scarcity mostly stretches turnaround time.

Where do engine shop visits land, from North American airlines to Gulf widebody fleets?

North America leads commercial aircraft engine MRO services with USD 19.59 billion in 2025, 31.7% of revenue, counted by operator base.

North America grows 5.27% to USD 32.74 billion, slowed by a mature CFM56 and V2500 fleet heading toward retirement. Europe holds USD 15.01 billion and grows 5.64% to USD 25.99 billion, as A320neo engines reach first heavy visits. Asia Pacific is close behind at USD 17.36 billion, growing 8.06% to USD 37.71 billion; India’s fleet is forecast to grow 7.1% a year, the highest rate of any country, and China adds the most aircraft. The Middle East is the fastest-growing region at 8.17%, from USD 5.19 billion to USD 11.38 billion, because GEnx and Trent engines in hot, sandy service come off wing sooner and every visit there is a widebody-priced event. Latin America moves from USD 3.21 billion to USD 5.99 billion at 6.43%. Africa is the wildcard: USD 1.42 billion growing 6.90%, small enough that one fleet order moves it by points.

Who dominates engine MRO when OEMs hold the parts and the repair data?

Douglas Insights estimates the three engine OEM groups hold 61.4% of commercial aircraft engine MRO services value, counting their own shop visits plus new parts sold into independent shops.

GE Aerospace leads with an estimated 29.6% share, about USD 18.29 billion, anchored on USD 31.9 billion of Commercial Engines & Services revenue in 2025, roughly 75% of it services; we strip out spare-engine leasing and non-visit services. Pratt & Whitney follows at an estimated 16.1%, built on GTF and V2500 programme control and the post-2023 removal wave; its 2025 sales reached USD 32.92 billion. Rolls-Royce holds an estimated 15.7%, almost all on Trent long-term service agreements, with GBP 7.2 billion of civil aftermarket revenue in 2025. These shares are Douglas Insights estimates, not disclosures.

Independents win on capacity and turnaround. MTU Maintenance’s March 2026 release says GTF work was one-third of its 2025 engine shop visits and V2500 25%, which makes MTU the main outlet for Pratt work outside Pratt’s own shops. Safran’s services revenue rose 30.0%, mostly LEAP under rate-per-flight-hour contracts.

How much does an engine shop visit cost by family, from CFM56 to Trent?

An engine shop visit averages USD 5.514 million across the commercial aircraft engine MRO services market in 2025, ranging from USD 3.27 million on smaller turbofans to USD 12.74 million on GE90/GEnx.

Narrowbody engines average USD 5.00 million: CFM56 USD 4.62 million, V2500 USD 4.87 million, LEAP USD 5.36 million and PW1100G GTF USD 5.71 million. A full CFM56-5B overhaul now tops USD 10 million; the averages blend light and heavy visits. Labour and repair on a narrowbody performance restoration run USD 0.5 million to 1.5 million, and USD 3 million to 5 million on a widebody, before parts. A widebody life-limited part stack costs USD 8 million to 12 million. Trent averages USD 7.08 million because 1,079 of its 1,596 visits in 2025 were lighter check-and-repair jobs.

Who pays when a geared turbofan comes off wing early under a flight-hour agreement?

The engine maker usually pays first: RTX took an approximately USD 3 billion pre-tax charge in the third quarter of 2023 against the PW1100G removals, out of USD 3 billion to 3.5 billion in total.

Under a flight-hour agreement for commercial aircraft engine MRO services, the airline pays a fixed hourly rate and the provider absorbs each engine shop visit. An engine that comes off wing twice as often as priced turns that contract into a loss, yet the visit revenue still lands in this market. Airlines carry the lost flying: six large US carriers raised engine-related spending 68% between 2019 and 2025 while flight hours grew only 10%. New flight-hour deals for engines with durability gaps are priced higher, part of the 4.24% price leg.

Which FAA and EASA rules decide who may release a turbine engine to service?

Only certificated repair stations holding a Class 3 powerplant rating for turbine engines under 14 CFR Part 145 may perform commercial aircraft engine MRO services and return engines to service in the US.

EASA Part-145 is the European equivalent, and most large engine shops hold both approvals. Airworthiness directives create demand directly. FAA directive 2023-28693, published in the Federal Register on 28 December 2023, ordered angled ultrasonic inspections of PW1100G high-pressure turbine hubs on 430 US-registered engines, at USD 6,800 per inspection and USD 56,850 for a first-stage hub replacement. That directive turned the 11 September 2023 RTX fleet plan into a legal deadline. Repair approvals are the third layer: an independent shop needs approved data to repair a part rather than replace it, and IATA’s 2026 call for fair aftermarket access targets exactly that point.

What would a LEAP durability fix or a deeper parts shortage do to the 2035 engine MRO outlook?

In 2035 commercial aircraft engine MRO services revenue sits at USD 116.58 billion in the base case, USD 95.41 billion in the slower case and USD 136.56 billion in the faster one.

The base case runs 2.22% visit growth and 4.24% price growth for 6.55% a year. The slower case cuts the legs to 1.30% and 3.10%: GE’s LEAP durability kit, nearly 1,500 shipped, more than doubles time on wing, the RTX powder-metal removals finish on schedule by 2026, and parts shortages cap inductions; revenue grows 4.44% to USD 95.41 billion. The faster case lifts them to 3.00% and 5.10%: hot-section problems persist in Gulf and Indian service, a second airworthiness directive follows the 2023 one, and list prices keep rising above inflation, giving 8.25% and USD 136.56 billion. One extra point of annual engine shop-visit growth lifts the 2035 base value by USD 11.92 billion.

Published forecasts run from about 2.4% to 5.3% a year, below our 6.55%. The gap is the price leg. Actual 2025 results ran far faster, with GE services up 26%, Safran’s civil aftermarket up 21.0%, MTU’s MRO revenue up 18% and StandardAero’s engine services up 15.3%.

Douglas Exclusive: the shop-visit forecast by engine family

The Douglas Insights shop-visit forecast by engine family counts visits and average revenue per visit for seven engine groups, and finds that LEAP and GE90/GEnx each reach about USD 27.5 billion by 2035.

The finding is a change of leader. CFM56 is the biggest narrowbody revenue pool in 2025 at USD 10.16 billion, yet LEAP engine revenue grows 19.84% a year and rises from 7.3% of the market to 23.6%. LEAP visits overtake CFM56 visits around 2030. GTF revenue more than doubles to USD 13.56 billion. CFM56 and V2500 are the only families whose revenue shrinks, at -1.81% and -2.46% a year.

How we rebuilt the engine MRO estimate: which shop-visit receipts support USD 61.79 billion?

Douglas Insights calculates 2025 commercial aircraft engine MRO services revenue as 11,206 shop visits times USD 5.514 million, or USD 61.79 billion.

The model has 7 engine families, 4 service lines and 6 regions, or 168 cells. Visit counts come from 6 published anchors: Willis Lease (CFM56 near 2,200), IATA (LEAP 600 to 800, GTF about 1,000), Aviation Week data (V2500 1,400), Rolls-Royce (1,596 Trent visits) and our own fleet-and-interval estimate for GE90/GEnx and Other turbofans. We reconciled 31 disclosed data points from 11 company, regulator and trade sources. Cross-check one: industry MRO totals of USD 124 billion and USD 136 billion with engines at nearly half imply roughly USD 60 billion to 68 billion; our figure equals 49.8% of the lower total. Cross-check two: MTU’s EUR 6.0 billion over 1,500 engines, EUR 4.0 million each, sits below our USD 5.00 million narrowbody average, consistent with its V2500-heavy mix. The previous edition showed USD 47.5 billion for 2025; the rebuild adds widebody visits it undercounted.

Sources

1. RTX / SEC EDGAR RTX Pratt & Whitney GTF fleet management update (Form 8-K exhibit 99.1) (2023)
2. FAA / Federal Register Airworthiness Directive 2023-28693, PW1100G-JM engines (2023)
3. IATA Urgent action needed to ease engine MRO bottlenecks (2026)
4. MTU Aero Engines MTU Maintenance 2025 growth release (2026)
5. Willis Lease Finance / SEC EDGAR Willis Lease Finance Q1 2025 presentation (8-K exhibit 99.2) (2025)
6. eCFR 14 CFR Part 145 Repair Stations (2026)
7. RTX / SEC EDGAR RTX 2025 results (8-K exhibit 99) (2026)
8. Safran Safran 2025 full-year results (2026)
9. StandardAero StandardAero fourth quarter and full year 2025 results (2026)
10. GE Aerospace GE Aerospace Q4 2025 earnings webcast transcript (2026)