Across EASA member states and the UK, a large share of today's licensed aircraft maintenance engineers is approaching retirement, and the pipeline of B1 and B2 licensed technicians is not keeping pace.

Airlines and MRO providers can invest in the latest diagnostic tools, but none of it moves the needle if there are not enough licensed engineers to sign off the work.

The bottleneck isn't capital. It's competence, and the training model that produces it has to scale to match a workforce that is harder to build.

The gap is real, and it's measurable

Europe's aircraft MRO market is sitting at roughly USD 32.87 billion in 2026, and it's expected to grow at a 5.03% CAGR to USD 42.01 billion by 2031, with engine overhaul as the single largest revenue segment (Mordor Intelligence). The UK held the largest share of Europe's engine MRO revenue in 2025. Boeing's 2026 Pilot and Technician Outlook puts the requirement at 728,000 new maintenance technicians over the next twenty years, whereas CAE's 2025 Aviation Talent Forecast estimates the world needs 416,000 new technicians by 2034. MRO Europe 2025 named B1 and B2 licensed engineers among the hardest roles to fill.

Demand isn't slowing down to give the workforce time to catch up. 2025 was the busiest year on record for UK aviation, with over 300 million passengers passing through UK airports. The global order backlog now sits above 16,000 aircraft, which represents more than a decade of committed work for the UK aerospace supply chain alone (ADS).

Why the old training model can't stretch any further

European MROs have trained engineers for the last fifty years on real aircraft, real components, an experienced hand standing next to a new one, and it has produced some of the best engineers in the world.

But this model can never bring the scale and speed this industry skill gap demands. Every aircraft sitting on the training floor is an aircraft not earning revenue. These aren't failures of the people running training programmes. They're the honest cost of a model built for a different demand curve.

Every MRO organisation faces the same problem. Technicians need real experience to become competent, but real experience on a live aircraft is expensive, slow to arrange, and unforgiving of mistakes. Simulation exists to resolve that problem, not by replacing hands-on work, but by making sure the hands-on work that happens counts for more.

How much a technician learns comes down to what happened to be in the hangar that week. A rare fault, an unusual configuration, a system that only fails once in a while, and exposure to these depends on timing and availability, not on the trainee's needs.

Simulation removes that dependency. A technician can walk through a landing gear inspection, a fault diagnosis, or an unfamiliar system configuration as many times as it takes, on demand, without waiting for the right aircraft to become available. Readiness stops being a matter of chance and becomes something a training programme can design for.

Simulation training: The missing layer between certification and confidence

Downtime that shifts from the aircraft to the simulator

An aircraft on the training floor is an aircraft not generating revenue. Simulation moves that cost off the fleet. A virtual environment can run in parallel, scale across training centres, and stay available around the clock. This changes what repetition costs. A technician can run a procedure multiple times and get it wrong safely, with no revenue lost. By the time they reach a real aircraft, the aircraft's role has shifted from teaching the skill to confirming it, which takes less time than teaching it from scratch.

Skill development that grows with the technician

Simulation isn't only useful for beginners. Early-career technicians use it to build fundamentals safely. More experienced engineers use it to stay sharp on procedures they perform rarely, or to train on next-generation aircraft before those aircraft are common enough to train on directly.

A powerful tool to preserve data and create an expert pool of engineers

What experts learn over decades doesn’t have to retire with them. Simulation is a great tool to train what the experts have learnt over the years, even after they retire. Almost any situation can be recreated in a virtual environment for training purposes. This way the learning from one can be transferred to many over the years and the data is never lost . One expert’s experience can train thousands. One lesson can prevent countless errors. On the airside, that can mean safer operations and significantly reduced risk.

Tecknotrove's simulation-led approach to scaling MRO training

Tecknotrove has spent over 24 years working with the aviation industry, building the most advanced simulators to solve the operational challenges MROs actually face. The training gap in MRO is the problem simulation exists to solve, and Tecknotrove approaches it differently depending on where a technician sits in the aircraft lifecycle.

Tecknotrove recreates digital twins of aircraft and critical subsystems, like landing gear, as fully interactive, immersive environments. These digital twins are precise enough that maintenance engineers can inspect, diagnose, and work through a procedure exactly as they would on the aircraft itself, without tying up a physical airframe or risking a real component. Aircraft Maintenance Manuals (AMM) and training documents stop being static text and become environments technicians can move through and act inside.

Picture an engineer working through a landing gear inspection, or an unfamiliar fault, as many times as it takes to get it right, without pulling an aircraft out of service and without a mistake following them past the session. If a procedure doesn't click the first time, they simply run it again instead of waiting for the next scheduled check. That's how muscle memory gets built without risking parts or people, and it matters even more for newer-generation engines accumulating flight cycles faster than anyone forecast during the pandemic years.

For line maintenance and ground staff, the same digital twin approach trains post-arrival and pre-departure inspection routines across Airbus and Boeing types, so inspection discipline is built before it's ever tested under time pressure on the ramp.

MRO training doesn't stop at the aircraft door, and neither does Tecknotrove's approach. The same simulation model extends to pushback and towing, cargo loading across main and lower decks, baggage handling, and airside driving with FOD awareness built directly in. These roles carry real safety consequences, and simulation gives them the same repeatable, risk-free practice as aircraft maintenance itself. Real-time analytics track how a trainee actually performs and adapt the scenario in response.

MRO training simulators: A workforce strategy, not a technology purchase

Simulators are not effective unless they are engineered with precision. Tecknotrove Simulation Solutions for MRO training are built to be precise enough to be indistinguishable from the real equipment, layered with AI-driven scenarios that recreate the rare, high-consequence faults an engineer might otherwise never see in training. This is the difference between training that looks convincing and training that measurably transfers to the aircraft.

Simulation doesn't replace certification or the aircraft. It changes what happens before a technician reaches either, building competence where repetition is safe, and reserving the aircraft for what only it can confirm. A small shift in sequencing, but a significant one in readiness and workforce depth.

Pilot training proved this already: simulation pays off as strategy, not equipment. A simulator outside the curriculum is a cost with no return. The organisations seeing real gains built their training around it.

The pressure is real and demand for licensed engineers is rising everywhere, at once. However, the technician gap won't close on its own, and the industry doesn't have a decade to wait, but it decides how many engineers reach it ready, and how fast. The companies considering simulation based training as a strategy today are the ones who will have a skilled workforce ready for tomorrow.

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