Used serviceable material (USM) gives aircraft operators and maintenance providers another source of parts alongside new production. Material recovered from aircraft, engines and components can retain commercial value after its previous owner no longer needs it, provided its condition and records support further use.
For Canada’s aviation aftermarket, the opportunity lies in connecting that supply with maintenance demand. It requires more than access to retired aircraft or a warehouse of components. Inspection, repair, documentation, inventory and distribution all influence whether a part can return to productive service.
StandardAero provides one example of the connection between Canadian maintenance capacity and the wider material market. The company operates engine maintenance, repair and overhaul (MRO) facilities in Winnipeg and lists USM among its CFM56 support services. That links a Canadian industrial footprint to a global aftermarket business, without implying that every part it supplies is held in Canada.
What Is Used Serviceable Material in Aviation?
USM refers to previously used aircraft or engine material supplied in serviceable condition. The International Air Transport Association (IATA) describes it as material previously used by operators, MRO providers or original equipment manufacturers (OEMs). IATA’s USM overview.
The distinction from general second-hand equipment is the condition of the item and the information accompanying it. A removed component can have value as a repair candidate, a source of material or a serviceable part. Those are different commercial propositions.
USM, New Parts and “As Removed” Material
| Material category | Commercial starting point |
|---|---|
| New material | Newly manufactured replacement material |
| Used serviceable material | Previously used material supplied with a serviceable status |
| As-removed material | Material in its removal condition; further work may be needed |
| Repair candidate | An item whose potential value depends on the cost and outcome of restoring it |
The purchase price is therefore only part of the comparison. A cheaper item needing substantial work can carry a different total cost and delivery risk from material already available in the required condition.
How the Aviation USM Supply Chain Works
Aircraft and engine disassembly can release components into the aftermarket. Those items then pass through some combination of records review, inspection, maintenance, storage and distribution before reaching another customer.
The businesses performing those tasks have different roles. An asset owner controls the source aircraft or engine. A teardown specialist removes material. A maintenance organization undertakes work within its capabilities and approvals. A distributor connects inventory to buyers, while an exchange provider can supply replacement material against the return of another unit.
A single business can combine several functions. That integration can reduce the number of commercial handoffs, but it also requires capital, technical capability and inventory management. A narrower supplier may instead specialize in a particular aircraft, engine or component family.
IATA’s MRO SmartHub procurement tools include transaction-based valuation and participation in shared part-out projects. Those services reflect two persistent questions in the market: what the material is worth, and how a buyer can gain access to suitable supply.
StandardAero, Winnipeg and CFM56 Support
StandardAero’s Winnipeg expansion announcement describes CF34 and CFM56 engine work at the facility. The company holds a General Support License Agreement for the CFM56-5B and CFM56-7B and identifies Winnipeg and Dallas/Fort Worth within its overhaul and test network.
Its wider CFM56 offering includes exchange engines, USM, component repair and engine health monitoring. The announcement establishes both Canadian MRO capacity and a related material-support business; it does not allocate all of that inventory to Winnipeg.
The commercial logic is the connection between maintenance work and material availability. An engine shop needs parts to complete a defined work scope. Access to suitable used material can add another sourcing option alongside new parts and repair of the customer’s existing components.
For the customer, the useful measure is the completed maintenance outcome: cost, turnaround and the resulting engine condition. The origin of each replacement part matters within that wider decision, rather than acting as a stand-alone measure of value.
Why Operators Use Serviceable Material
Managing Engine Shop-Visit Costs
GE Aerospace markets used parts within its TrueChoice Material offering as a complement to new parts, intended to lower engine shop-visit costs. Its services combine new material, used parts and repair options.
This is a more useful way to understand USM than treating it as an entirely separate maintenance model. The choice can be made at the material level within a broader work scope, with different options serving different technical and economic needs.
Matching Maintenance to the Ownership Horizon
A customer’s intended period of operation also affects the commercial calculation. GE’s TrueChoice Transitions offering explicitly connects tailored maintenance work scopes and material choices to shorter ownership horizons.
The implication is that the same aircraft or engine family can create different material requirements across its life. A long-term operator and an owner approaching a planned transition may value the available options differently. The maintenance decision still has to meet the technical requirement, but the economic objective can change.
Improving Access to Replacement Parts
USM adds a source of supply, though availability depends on the exact part and its condition. A broad inventory claim does not establish that the component needed for a particular maintenance event is immediately available.
IATA identifies aircraft part-outs and USM as contributors to easing aviation supply constraints. Its Maintenance Cost Technical Group also works on documentation for life-limited and time-controlled components. Supply and records remain connected: additional material is useful when it can meet the customer’s requirements.
Traceability and Serviceability in Canada
Transport Canada’s Advisory Circular 571-026, effective 9 July 2025, addresses parts removed from aircraft no longer in service and the disposal of scrapped parts. It explains the importance of component history, condition, maintenance and release documentation.
A serviceable label alone does not determine suitability for a particular installation. The part’s identity, applicable life limits, records and release status need to support the intended use, with the installation decision resting with the responsible maintenance personnel under the applicable requirements.
This has a direct commercial consequence. An item with incomplete records may require additional work or fail to meet the buyer’s needs despite an attractive asking price. Documentation is part of the material’s usable value.
How to Compare Aircraft USM Suppliers
The first question is what the supplier actually provides. Inventory ownership, brokerage, repair, exchange and engine support are distinct services within the wider Canadian aerospace supplier base.
A comparison can then focus on the transaction:
- The exact aircraft, engine or component family supported.
- Part identity, stated condition and accompanying records.
- Whether the material is in stock and where it is located.
- Work still required before delivery or use.
- Lead time, warranty, returns and exchange obligations.
- The organization responsible for the maintenance and release work.
These details expose differences that a general “USM supplier” description can conceal. They also help separate an immediately usable commercial offer from one dependent on further sourcing or repair.
How Large Is Canada’s Aviation USM Market?
The available company and industry disclosures do not establish a transparent Canada-wide market total. StandardAero’s service portfolio demonstrates business activity, while IATA and GE Aerospace explain wider aftermarket practices. None of those sources provides a Canadian revenue estimate for the sector.
The geographic definition would also change the result. Sales by Canadian suppliers, material physically located in Canada and purchases by Canadian operators describe different markets, particularly when engines and components move through international maintenance networks.
For evaluating a specific opportunity, aircraft and engine family, maintenance demand, available inventory and supplier capability offer a more useful starting point than an unsupported national growth forecast.
Aviation USM: Common Questions
Is Used Serviceable Material the Same as Scrap?
No. USM is supplied as serviceable material for further use. Scrap and material awaiting an assessment or repair have different conditions and commercial uses.
Does StandardAero Offer USM?
Yes. StandardAero lists USM among its CFM56 support services. Its Winnipeg facilities form part of its engine MRO network, but its public expansion announcement does not place all USM inventory at that location.
Is There a Fixed Discount for USM Compared with New Parts?
No single discount applies across the market. The comparison depends on the part, condition, records, availability and remaining work, as well as the terms offered by the supplier.