ametekmro.com

An aircraft landing system is the assembly that supports the aircraft on the ground and manages every phase of takeoff and touchdown: the landing gear structure, wheels and tires, brakes, shock absorbers, and the actuation and control components that extend, retract, and regulate them. It works as a chain—actuation releases the gear, struts and shock absorbers absorb the touchdown load, and wheels, brakes, and anti-skid bring the aircraft to a controlled stop. Because these parts are safety-critical and wear quickly, landing systems are also one of the most active areas of component maintenance, repair, and overhaul (MRO).

The main parts of a landing system

AMETEK MRO lists landing systems alongside actuation, aviation safety avionics, power generation, and thermal management as one of the component families it supports, and describes itself as servicing more than 40,000 unique aircraft parts across commercial, regional, general aviation, helicopter, and military markets.

How the system works, step by step

1. Extension before landing

The gear is released from its stowed position, typically by hydraulic or electromechanical actuation, and locks into the down position. Actuation is the input here: a command from the flight deck drives the mechanism, and the expected result is gear that is down and locked, ready to accept load.

2. Touchdown and load absorption

On contact, the shock absorber compresses and forces hydraulic fluid through an orifice, converting vertical motion into heat and slowing the compression. The strut then extends again in a controlled way. This is the mechanism that keeps a hard touchdown from becoming a structural event—without it, the full impact would pass directly into the airframe.

3. Rolling and directional control

Wheels and tires carry the aircraft while it rolls out. Nose-wheel or main-gear steering keeps it on the centerline at low speed.

4. Braking and anti-skid

Brakes apply friction to the wheels, and the anti-skid function releases and reapplies pressure when a wheel begins to lock. The result is stopping distance matched to the runway surface rather than a skid.

5. Retraction after takeoff

Once airborne, actuation stows the gear again, reducing drag for the climb and cruise phases.

Maintenance and repair considerations

Landing system components are exposed to high loads, heat from braking, and runway debris, so they are inspected and overhauled on scheduled intervals. Practical points to check when selecting a repair provider:

• Platform coverage — confirm the provider supports your specific aircraft type, not just the component category.
• Certification — look for aerospace quality certifications relevant to the work; AMETEK MRO's Drake Air unit, for example, is described as an AS9110/9100-certified MRO Center of Excellence.
• In-house capability — providers that combine repair with manufacturing resources can sometimes offer alternatives to outright replacement. Drake Air's Nu-Matrix process, an FAA-approved DER core replacement method, is an example of restoring a component rather than replacing it.
• Turnaround and scope — ask whether test, repair, and overhaul are all handled at one location.

For operators, the practical takeaway is that a landing system is only as reliable as its weakest serviced part, so matching component repair scope to the actual platform and certification requirements matters more than the breadth of a provider's catalog.

Avionics equipment is the collection of electronic systems on an aircraft that handle communication, navigation, flight control, monitoring, and safety functions. It includes radios, navigation receivers, flight displays, autopilot computers, sensors, and warning systems. Because these units are electronic rather than mechanical, they are usually tested, repaired, and overhauled by specialized avionics shops rather than through general airframe maintenance. This article explains what avionics covers, why it needs dedicated repair, and what to check when choosing a provider.

Main Categories of Avionics Equipment

Avionics is a broad term, and the exact inventory varies by aircraft type and mission. The categories below cover the typical scope.

A single aircraft may carry dozens of line-replaceable units across these categories. Each unit is a self-contained electronic assembly that can be removed, tested, and reinstalled or exchanged.

Why Avionics Needs Specialized Test, Repair, and Overhaul

Avionics units are not maintained the way airframe structures or engines are. Three factors drive the difference:

• Test equipment is specific to the unit. A radio or flight computer can only be verified against its own performance specifications using dedicated test benches and procedures. General shop tools cannot confirm whether a unit meets its operating tolerances.
• Faults are often intermittent and electronic. A unit that passes on the bench may still fail in flight due to temperature, vibration, or connector issues. Repair shops use environmental and functional testing to reproduce and isolate these faults.
• Repair means restoring performance, not just replacing parts. Overhaul of an avionics unit typically involves cleaning, component-level diagnosis, replacement of failed parts, and re-verification against the original specification.

This is why avionics sits alongside other specialized disciplines in an MRO context. A provider's capability page, such as AMETEK MRO's, lists avionics together with actuation, landing systems, power generation, and thermal management — each requiring its own test and repair infrastructure. An avionics repair event is therefore usually handled by a shop that focuses on electronics, even when the unit is removed during broader aircraft maintenance.

How Avionics Fits Alongside Other Aircraft Systems in MRO

In a maintenance, repair, and overhaul (MRO) program, avionics is one workstream among several. The table below shows how it relates to neighboring systems.

Because these systems interact, a fault that appears in an avionics unit can sometimes trace back to power quality or cooling. A provider that services multiple system types can help isolate the true cause rather than repeatedly repairing the same unit.

AMETEK MRO describes itself as a global MRO provider serving commercial, regional, and general aviation aftermarkets, with 12 locations and capability to service more than 40,000 aircraft components. It also offers new build and design programs and aircraft component management services. For avionics specifically, the relevant question is whether the provider's avionics shop holds the test capability for your unit types.

What to Check When Selecting an Avionics Repair Provider

Use the following checklist to compare providers on the same dimensions:

1. Certification. Confirm the shop holds the certifications required for the work and region, such as AS9110/9100 where applicable. AMETEK MRO cites AS9110/9100 certification for its Drake Air thermal center, which illustrates the kind of credential to look for.
2. Platform coverage. Ask whether the provider supports your aircraft type. Capability expansions are often announced per platform — for example, AMETEK MRO's Drake Air announced expanded thermal capabilities for the Airbus A220, with its Nu-Matrix FAA-approved DER core replacement process expected in Q2 2026 for applicable A220 thermal components. Similar platform-specific questions apply to avionics.
3. Test capability. Confirm the provider can test your specific part numbers against original specifications, not just perform visual inspection.
4. Turnaround and exchange options. Ask about repair turnaround times and whether an exchange unit is available to keep the aircraft flying.
5. Component management. If you operate a fleet, check whether the provider offers component management services that track and schedule avionics repairs.

Practical Takeaway

Avionics equipment covers the electronic systems for communication, navigation, flight control, monitoring, and safety. It requires specialized test and repair because general maintenance cannot verify electronic performance. When selecting a provider, compare certification, platform coverage, test capability, turnaround, and component management — and confirm the specific unit types you operate are supported before committing.

Aviation MRO stands for maintenance, repair and overhaul: the work that keeps aircraft components airworthy after they enter service. An MRO provider receives a worn, failed or due-for-inspection component, tests and repairs or overhauls it, and returns it to serviceable condition. This differs from line maintenance, which is the routine, often on-aircraft work done between flights, and from new-build and design programs, which create or modify hardware rather than restore it. Operators use component MRO when a part needs bench-level attention that their own line or base maintenance teams cannot perform.

What component categories does an aviation MRO service?

MRO providers typically organize capabilities by component system rather than by aircraft type. AMETEK MRO lists five core areas on its site:

• Actuation — mechanisms that move or position aircraft parts
• Aviation safety avionics — electronic systems tied to safe flight and operation
• Landing systems — the landing gear and related assemblies
• Power generation — including items such as aircraft starter generators
• Thermal management — heat exchangers, oil coolers, fuel heaters and precoolers

The company describes itself as supporting more than 40,000 unique aircraft parts, which indicates the breadth of component types an established MRO can handle in-house or through partner shops.

Who uses MRO services?

Component MRO serves several distinct operator groups, and a provider's usefulness depends on whether it covers yours:

AMETEK MRO states that it serves the commercial, regional and general aviation aftermarkets across these segments. If your operation sits outside those categories, confirm coverage before assuming a provider can take your part.

What should you check in an MRO provider?

Certification and capacity are the two practical filters. AMETEK MRO's Drake Air facility is described as an AS9110/9100-certified MRO Center of Excellence for aircraft thermal management. AS9110 and AS9100 are aerospace quality management standards, so a certification claim tells you the shop has been audited against a recognized aerospace quality system — ask for the scope of the certificate, since it may cover only certain processes or locations.

Other checks worth making:

• Part coverage — does the provider list your component type, and for your specific platform? Drake Air's expansion to Airbus A220 thermal components is an example of capability that is platform-specific rather than universal.
• Global footprint — AMETEK MRO cites 12 locations worldwide. Multiple sites can shorten shipping distance and provide backup capacity, but confirm which site handles your component.
• Turnaround performance — ask for quoted turnaround times and how they are measured; the site references turnaround performance as a quality attribute without publishing figures.
• Repair alternatives — some providers offer approved processes that restore a component instead of replacing it. Drake Air's Nu-Matrix core replacement process, described as FAA Approved DER and expected to be available in Q2 2026 for applicable A220 thermal components, is an example of a cost-effective alternative to full replacement. Availability dates and applicability should be confirmed directly.

How does a component repair cycle work in practice?

The general flow is consistent across providers, though specific forms and portals vary:

1. Identify the component and its condition. Record the part number, serial number, platform and fault or reason for removal. This determines whether the shop can accept it.
2. Request a quote and confirm capability. Send the details to the provider and get written confirmation of scope, turnaround estimate and any certification documentation you need.
3. Ship with paperwork. Include the removal tag, serviceability history and any required airworthiness documentation. Missing records are a common cause of delay.
4. Receive the assessment. The shop tests the unit and may issue a repair quote that differs from the original estimate if additional faults are found. Approve or decline before work proceeds.
5. Repair or overhaul and return to service. The component is restored, tested and returned with release documentation. Verify the documentation matches your requirements before installing.

For example, an operator with an A220 experiencing a heat exchanger issue would confirm the shop's A220 thermal capability, ship the unit with records, and expect either a standard repair or, where applicable, a core replacement process once available.

Deciding whether a provider fits

Choose a provider whose certified scope, platform coverage and location match your component and fleet. If your part is a common thermal or power generation item on a widely supported platform, a large multi-site MRO is a reasonable default. If your component is platform-specific or newly supported, verify the capability and any pending process approvals in writing before shipping. Where turnaround is critical, ask for the specific site's current lead time rather than relying on general claims.

An aircraft repair and overhaul provider—commonly called an aviation MRO (maintenance, repair, and overhaul) provider—keeps aircraft flying by restoring, testing, and certifying components that have been removed from service. Rather than working on the whole airframe alone, many MROs specialize in component-level work: they receive a failed or timed-out part, repair or overhaul it to airworthy condition, and return it to the operator's inventory. AMETEK MRO, for example, describes itself as a global provider serving the commercial, regional, and general aviation aftermarkets, with 12 locations and capability for more than 40,000 unique aircraft components, plus new build and design programs and component management services.

Repair vs. overhaul vs. new-build: what's the difference?

These three terms describe different scopes of work, and a provider's proposal should make clear which one applies to your part.

• Repair restores a specific defect or damage so the component meets its approved condition—often a targeted fix rather than a full teardown.
• Overhaul is a deeper, defined process: the unit is disassembled, inspected, and brought back to specified performance limits, typically on a scheduled interval.
• New-build and design programs go beyond restoration. The provider manufactures or designs components, which matters when original parts are scarce or a platform needs an upgraded solution.

A provider that offers all three can often handle a part whether it needs a quick fix, a scheduled overhaul, or a replacement path.

Which components do MRO providers typically handle?

Component MRO is organized by system. AMETEK MRO lists its capabilities across these categories:

The practical takeaway: match your removed part to a provider's stated category before assuming they can service it. A specialist in thermal management may not touch avionics, and vice versa.

Why platform coverage matters

Two providers with identical component lists can still differ in whether they support your aircraft. Platform coverage—the specific aircraft models a provider is approved to test, repair, and overhaul—determines whether your part can be handled in-house or must be outsourced.

AMETEK MRO illustrates how coverage expands over time. Its Drake Air business, described as an AS9110/9100-certified MRO Center of Excellence for aircraft thermal management, announced in April 2026 an expansion of thermal capabilities to support test, repair, and overhaul for the Airbus A220 platform. The expansion is aimed at A220 operators seeking thermal management repair, and the company expects its Nu-Matrix FAA-approved DER core replacement process to be available in Q2 2026 for applicable A220 thermal components—positioning it as a cost-effective alternative that restores components to like-new performance.

That example shows what to look for: not just a broad capability statement, but confirmation that your exact platform and part number fall within the provider's approved scope.

Which operator segments are served?

MRO demand differs by segment, and providers usually state who they support. AMETEK MRO lists business aviation, commercial aviation, helicopters, and military & defense. Segment matters because requirements diverge—military and defense work may carry different documentation and approval expectations than general aviation, and rotorcraft components face different duty cycles than fixed-wing commercial parts. Confirm your segment is explicitly served rather than assumed.

Certifications and approved processes to check

Certification is the clearest signal of whether a provider's work will be accepted back into your operation. Two things to verify:

1. Quality system certification. AMETEK MRO cites AS9110/9100 certification for its Drake Air thermal center. AS9100 is the aerospace quality management standard; AS9110 applies it to maintenance organizations. Ask which certification covers the specific facility doing your work.
2. Approved repair processes. Some repairs rely on special approvals—for instance, DER (Designated Engineering Representative) core replacement, which AMETEK MRO uses under its Nu-Matrix process. If a provider proposes a non-standard repair, ask what approval backs it and whether your regulator accepts it.

How to evaluate a provider before you commit

Use the same dimensions across candidates so the comparison is fair:

• Part and platform coverage: Can they service your exact component and aircraft model? Ask for the approved capability list, not a general brochure.
• Scope clarity: Does the quote specify repair, overhaul, or replacement, and what condition the unit returns in?
• Turnaround: What turnaround performance do they commit to, and is it stated per component type? AMETEK MRO references turnaround performance as part of its value proposition; ask for specifics relevant to your part.
• Component management services: If you want a partner to manage inventory and logistics rather than handle one-off repairs, confirm this is offered—AMETEK MRO lists aircraft component management among its services.
• Certification and process approvals: Verify the facility-level certification and any special process approvals in writing.

A provider that answers all five with specifics—rather than general claims—is the safer choice for keeping components in rotation.