Consider the gap between an airplane and the metal inside its engine. The airplane is visible from the terminal, expensive enough to inspire financing arrangements and large enough to carry your holiday. The metal is somebody else's problem. Until, in 2023, a rare condition in powder metal used in certain Pratt & Whitney engine parts turned that comfortable division upside down.
- Three businesses: engines, aircraft systems and defense.
- New equipment leads to years of parts, repairs and support.
- A metal problem showed how costly that promise can become.
Pratt & Whitney's parent, RTX, announced a plan requiring roughly 600 to 700 additional engine shop visits through 2026. These were inspections and removals beyond its forecast entering 2023. Airlines would have aircraft on the ground. Maintenance shops would need capacity. Customers would need compensation. An obscure manufacturing problem had become an operating problem for an industry.
That is a useful place to meet RTX. Its work lives inside other people's products and behind other people's promises: the departure board, the cockpit, the air-defense network. When everything works, passengers have little reason to know its name.
Three businesses, one long obligation
Today's combination arrived in April 2020, when United Technologies and Raytheon completed an all-stock merger following UTC's separation of Carrier and Otis. The company became RTX Corporation in 2023. This was an assembly of established industrial businesses, with inherited factories, customers and technical knowledge, rather than a founder's clean-sheet invention.
Its three businesses cover different pieces of the machinery. Pratt & Whitney builds aircraft engines, including the GTF commercial engine family and the F135 used by the F-35. Collins Aerospace supplies avionics, power systems, aerostructures and cabin equipment. Its catalog extends to seats, oxygen systems, galleys and lavatories. Somewhere between a fighter engine and an airplane bathroom lies an unusually broad industrial portfolio.
Raytheon builds radars, missiles and integrated defense systems. Patriot combines sensing, command-and-control technology and interceptors to address airborne threats. The customer buys an interacting system whose usefulness depends on its parts working together. Airlines, aircraft manufacturers, armed forces and governments are RTX's buyers; ordinary travelers encounter the results.

The gear was the idea. The metal was the problem.
The GTF's engineering proposition is pleasingly understandable. A gearbox lets the fan and low-pressure turbine turn at different speeds, so each can operate more efficiently. Pratt & Whitney advertises fuel-consumption reductions of up to 20 percent against prior-generation engines. For an airline repeatedly flying the same route, small operating improvements accumulate with every departure.
The 2023 powder-metal problem involved certain engine parts; it was not an announcement that the gearbox concept had failed. RTX's response was accelerated inspections, part-life limits, additional maintenance capacity and higher parts output. The distinction matters. An architecture can deliver its intended benefit while the industrial process supporting it creates a costly fleet problem.
In September 2023, RTX estimated a pretax operating-profit impact of $3 billion to $3.5 billion over several years, after partners' share, including an approximately $3 billion third-quarter charge. Those were estimates announced then, not a final repair invoice. They included expected customer compensation and added costs on maintenance contracts. Selling efficiency had created a responsibility to pay when aircraft could not use it.
“We prioritize safety in every aspect of our work.”
RTX · stated company value
The second sale lasts longer
An engine delivery begins a relationship. For the buyer, the decision reaches beyond the purchase price: a cheaper machine can become costly if it consumes more fuel, needs unexpected work or spends too much time waiting for a replacement component. It generates demand for spare parts, inspections, repairs and overhauls; service arrangements can extend across years of operation. Collins has its own aftermarket in replacement parts and repairs. Defense equipment brings sustainment, upgrades and replenishment. RTX earns from both new hardware and the work required to keep equipment useful.
This helps explain its market position. Aircraft certification, integration work and accumulated service knowledge make an established supplier difficult to replace casually. Competition still varies by product: an engine contest differs from a cockpit-system bid or an air-defense procurement. RTX's breadth gives it many ways onto a platform, while rivals can compete on price, delivery, reliability and operating costs.
Customers also have alternatives after delivery, including other approved parts and service providers. The relationship must keep earning its place. A long maintenance commitment can become expensive when inspections multiply or assumptions about durability prove optimistic. The same years that create repeat business can stretch a manufacturing error across the balance sheet.
deliver
monitor
upgrade
A missile order also needs a factory
Defense demand adds another clock. In January 2024, NATO's procurement agency awarded COMLOG, the Raytheon-MBDA joint venture, a contract worth up to $5.6 billion for as many as 1,000 Patriot GEM-T missiles if all options were exercised. The agreement included suppliers, test equipment and spares, with expanded European production capacity to support delivery.
The revealing detail is the factory work attached to the headline number. Buying more missiles requires qualified components and production capability. A partnership can spread that work across countries and suppliers. MTU's role in the GTF program offers another example: RTX's products emerge from specialist industrial relationships, even when one brand receives most of the attention.
There is a less flattering test of those relationships, too. In October 2024, the U.S. Justice Department announced that Raytheon would pay over $950 million to resolve investigations involving defective pricing, foreign bribery and export-control violations. RTX's stated values include safety, trust and accountability. Such settlements make the distance between declared values and actual conduct part of the company story.
Orders are promises with a delivery date
By October 2026, RTX reported a $340 billion backlog, split between $176 billion commercial and $164 billion defense. Its third-quarter sales were approximately $25 billion. Backlog measures orders awaiting fulfillment; it does not mean that cash has arrived or profit is assured. The order book describes opportunity and a substantial amount of unfinished work.
The practical lesson is available to businesses far smaller than RTX: design the support system alongside the product. Know which part can stop the customer operating. Build repair capacity, establish feedback from service teams and price the obligation over time. That is an inference from RTX's experience, rather than a recipe its management has published.
It works only if the economics survive the promises. Underpriced guarantees, scarce replacement parts, slow repairs or changing government budgets can undermine the arrangement. A passenger wants the airplane to depart. An airline wants predictable operating costs. A defense customer wants equipment ready when required. RTX's business is the long, exacting work of making those expectations meet the machinery.