Lufthansa Group's engine management arm has placed CFM56 maintenance and repair work with FL Technics Engine Services, adding one of Europe's largest airline groups to the customer list of a 3,400-square-meter engine shop in Kaunas, Lithuania.

The agreement, signed with Group Engine Management GmbH — a subsidiary of Deutsche Lufthansa AG — covers maintenance and repair services across the CFM56 engine family. For FL Technics, the deal validates a shop strategy built entirely around one of the most widely operated engines in the world, and it follows a customer audit of the Kaunas facility that Lufthansa Group completed before committing the work.

What does the deal cover?

The Kaunas facility maintains the three main CFM56 variants:

• CFM56-3, which powers the Boeing 737 Classic series
• CFM56-5B, fitted to the Airbus A320 family
• CFM56-7B, the engine of the Boeing 737 NG

The shop operates eight maintenance bays dedicated to the type. Its service portfolio targets two levers that matter most to operators of mature CFM56 fleets: cost reduction and time on-wing.

The offering includes:

• Engine repairs
• Module swaps
• On-wing support
• Partial performance restoration
• Lease return services

Lease return work is a notable line for an engine approaching mass retirements. As CFM56-powered 737NGs and A320ceos transition out of primary fleets, lessors increasingly need shops that can restore engines to contract condition without paying for full performance restoration they will never recover.

Why did Lufthansa audit the shop first?

Before the partnership, representatives from Group Engine Management GmbH carried out a customer audit of the Kaunas operation. The audit examined:

• Technical processes
• Quality and safety management
• Documentation
• Control of maintenance activities
• Personnel competence

Quality Manager at FL Technics Engine Services Justinas Mikalainis said: "An audit with a customer like Lufthansa Group gives us an opportunity to look at our organization from the customer's perspective."

"It helps us understand their expectations, confirm the effectiveness of our processes and identify opportunities for improvement," Mikalainis noted.

The audit's scope — from documentation control through personnel competence — reflects the compliance burden any MRO must clear before handling engines for a group that manages fleets across multiple carriers and lessor relationships.

What does the partnership mean for both sides?

For FL Technics Engine Services, the agreement represents a capability endorsement as much as a commercial win. The company has spent recent years building an operation focused exclusively on the CFM56 family and undergoing assessments to verify the quality of its standards and processes.

FL Technics Engine Services CEO Valerij Deveikis said: "Lufthansa Group as FL Technics Group sets a high standard in aviation, and being able to work with an organization of this scale gives us a valuable opportunity to learn, exchange experience and further strengthen the way we operate."

Deveikis added: "We are grateful for the trust and look forward to everything we can take from this cooperation to continue developing the shop and its capabilities."

For Lufthansa Group, the arrangement adds capacity in a CFM56 aftermarket that remains heavily booked. Group Engine Management coordinates engine maintenance across the group's carriers, and qualified additional shop slots give it flexibility on turnaround times and pricing for a fleet type that still carries substantial traffic despite ongoing A320neo-family and 737 MAX transitions.

What comes next?

Neither party disclosed contract duration, engine volumes or pricing. The partnership's practical test will come in execution: turnaround times, on-wing performance of engines cycled through Kaunas, and whether the cooperation expands beyond the initial scope as the CFM56 fleet ages and shop-visit demand peaks later this decade.