This article is based on an official press release from Avio Network.

On May 11, 2026, Belgrade-based Avio Network officially announced the completion of its acquisitions of JAT Tehnika, a prominent maintenance, repair, and overhaul (MRO) provider located at Belgrade Nikola Tesla Airport in Surčin, Serbia. According to the official press release, this transaction is a cornerstone of Avio Network’s growth strategy, designed to significantly expand its technical capabilities, infrastructure, and market reach across Europe.

We note from supplementary industry research that the deal involves Avio Network acquiring a 99.38% stake in the historic MRO facility. The acquisition positions the company to capitalize on the post-pandemic recovery of the global airline industry, fleet expansions, and the corresponding surge in demand for cost-effective maintenance services.

The Details of the Acquisition

Transition of Ownership

The formal Share Purchase Agreement (SPA) was initially signed in December 2025, according to verified public data. Following regulatory clearance from Serbia’s competition authority, the deal was finalized in May 2026. The financial terms of the transaction remain undisclosed.

In the company press release, Avio Network CEO Aleš Luci highlighted the strategic value of the purchase, emphasizing the immediate access to certified maintenance facilities and a highly skilled workforce.

“This acquisition represents a strategic investment in scalable infrastructure and proven operational excellence. JAT Tehnika brings a strong foundation… that are fully aligned with our vision of building a leading regional MRO platform.”

The press release confirms that JAT Tehnika will continue to serve its current clients without interruption during the transition period, with Avio Network planning to introduce additional commercial opportunities under its ownership.

Contrasting Profiles: From Niche Services to MRO Giant

Avio Network’s Rapid Ascent

Founded in 2017 and headquartered at Belgrade Nikola Tesla Airport, Avio Network began as a niche aviation services provider focusing on aircraft washing and cleaning. Public industry data shows the company expanded its portfolio in 2022 by obtaining licenses for aircraft towing and pushback, eventually entering the line maintenance sector. Prior to this acquisition, Avio Network operated with approximately 90 employees, serving clients such as Air Serbia, easyJet, Lumiwings, Leav, and DAT.

JAT Tehnika’s Historic Legacy

In stark contrast to its new parent company’s relatively recent founding, JAT Tehnika boasts roots dating back to 1927 with the founding of the airline Aeroput. Established in its current corporate form in 2006, the facility spans approximately 480,000 square meters and features three hangars capable of accommodating both narrow-body and wide-body aircraft.

JAT Tehnika holds critical international certifications, including EASA PART-145, FAA FAR 145, and EASA PART-21J (European Design Certificate). Notably, in August 2023, the facility completed the first passenger-to-cargo conversion of a Boeing 767-300 aircraft in Europe, a milestone achieved in collaboration with Israeli Aerospace Industries.

Strategic Rationale and Market Context

Planned Investments

Avio Network plans to implement targeted investments aimed at modernizing JAT Tehnika’s facilities, improving digital capacities, and optimizing operational efficiency. The official release notes these upgrades will strengthen the company’s competitive position in both narrow-body and wide-body maintenance segments.

AirPro News analysis

At AirPro News, we view this acquisition as a fascinating shift in the Southeast European aviation landscape. The contrast in scale is particularly striking: a relatively young company with roughly 90 employees has successfully taken over a massive, historic MRO facility with nearly a century of legacy. This move signals a highly ambitious transition for Avio Network from line maintenance and ground handling into heavy, comprehensive MRO services.

Furthermore, this transaction must be viewed within the broader context of regional market restructuring. JAT Tehnika was previously owned by Avia Prime, a Czech-based aviation group controlled by Hartenberg Holding, which acquired the Serbian MRO during its 2019 privatization. Industry research indicates that Avia Prime is executing a strategic divestment from the Balkans; in late 2025, the group agreed to sell its Slovenian maintenance subsidiary, Adria Tehnika, to the European low-cost carrier easyJet.

This broader exit by Hartenberg Holding from the aviation sector underscores a shifting competitive landscape where major airlines are increasingly bringing maintenance in-house to control operating costs. By keeping JAT Tehnika under regional ownership, Avio Network is securing a strategically vital industrial asset for the Western Balkans, ensuring Belgrade remains a competitive hub for aircraft maintenance in Southeast Europe.

Frequently Asked Questions

What percentage of JAT Tehnika did Avio Network acquire?

According to public industry data, Avio Network acquired a 99.38% stake in JAT Tehnika.

Will current JAT Tehnika clients be affected by the change in ownership?

No. The official press release states that JAT Tehnika will continue to provide services to its current clients without interruption.

What are Avio Network’s future plans for the facility?

Avio Network has committed to targeted investments in the modernization of facilities, the improvement of digital capacities, and the optimization of operational efficiency.

Sources:

• Avio Network Official Press Release

Keeping NASA Flying: The Unsung Heroes of Aircraft Readiness

Behind every high-speed research flight and high-altitude science campaign at NASA is a dedicated team of ground maintenance professionals. Based primarily at NASA’s Armstrong Flight Research Center in Edwards, California, these specialized crews ensure that a highly diverse fleet of civilian, military, and experimental aircraft operate safely and reliably.

According to an official press release from NASA, maintaining this varied fleet requires immense agility. Because these aircraft fly at different speeds, carry highly specialized hardware, and operate under varying mission parameters, the ground crews must constantly adapt to new challenges to keep the agency’s aeronautics and science advancements on track.

The Anatomy of a NASA Ground Crew

Maintaining NASA’s fleet requires a highly coordinated team with specialized roles. The official agency report outlines a structured hierarchy designed to maximize safety and efficiency on the flightline.

Key Roles and Responsibilities

At the helm of each aircraft’s maintenance is the Crew Chief, who bears ultimate responsibility for the structural and operational integrity of the plane. They are supported by Avionics Technicians, who focus on navigation, communication, and flight control systems, as well as specialized Mechanics who handle physical repairs and part replacements. Quality Assurance Personnel oversee all work to ensure it meets strict safety standards.

“There is a crew chief assigned to every aircraft. The crew chief is responsible for the integrity of that aircraft, and at the end of the day, his signature and the pilot’s together are what constitutes that the aircraft is safe for flight,” stated Jose “Manny” Rodriguez, NASA Armstrong Gulfstream G-IV Crew Chief, in the NASA release.

Adapting to a Diverse and Expanding Fleet

As of 2026, NASA has expanded its fleet at the Armstrong Flight Research Center, requiring ground crews to adapt to new airframes and experimental technologies. Recent additions include two F-15 fighter jets and a Pilatus PC-12 turboprop.

The maintenance teams are also tasked with managing legacy high-altitude platforms like the ER-2 Earth resources aircraft, alongside cutting-edge experimental planes.

“It’s difficult at times to work with different airplanes from both the civilian and military sides, but it’s very rewarding to see that we have the capability and the expertise to keep these aircraft flying,” Rodriguez noted.

The X-59 Quesst and Experimental Maintenance

Ground crews are currently managing scheduled maintenance and rigorous inspections for NASA’s newest X-plane, the X-59 Quesst, which is designed for quiet supersonic flight. Teams frequently remove panels for thorough visual inspections of internal systems to confirm airworthiness.

“Inspections are a very important part of the airworthiness process for a brand new airplane. We have to inspect this aircraft more frequently than other aircraft,” explained David Mcallister, Operations Lead for the X-59.

Rigorous Maintenance Protocols

To ensure the safety of these multi-million dollar assets, ground crews perform continuous, rigorous maintenance. Routine tasks include checking ejection seats, fueling the aircraft, and constantly replacing parts that degrade with each flight, such as brakes, wheels, wiring, and hardware.

Once maintenance is complete, the aircraft is towed to the flightline. Before takeoff, the assigned NASA pilot and the crew chief conduct a final safety walk-around. Furthermore, maintenance crews actively track each flight to ensure mission completion. If an aircraft is forced to return to base early, the ground crew is immediately on standby to troubleshoot and repair the issue.

AirPro News analysis

We observe that NASA’s approach to fleet maintenance highlights a unique operational challenge rarely seen in commercial aviation. While commercial airlines typically operate standardized fleets to streamline maintenance and reduce costs, NASA’s Armstrong facility must maintain a mixed inventory of legacy military jets, civilian turboprops, and one-of-a-kind experimental X-planes.

This requirement for hyper-adaptability places an extraordinary burden on the ground crews. The successful integration of new assets like the F-15s and the Pilatus PC-12 in 2026, alongside the highly sensitive X-59 Quesst, underscores the elite training and flexibility of these aviation technicians. Their ability to pivot from standard civilian maintenance to experimental supersonic protocols on a daily basis is a critical, yet often overlooked, pillar of American aerospace innovation.

Frequently Asked Questions

Where are NASA’s primary aircraft maintenance operations located?
NASA’s primary aircraft maintenance operations are based at the Armstrong Flight Research Center in Edwards, California.

What new aircraft did NASA add to its Armstrong fleet in 2026?
According to the NASA release, the agency recently added two F-15 fighter jets and a Pilatus PC-12 to its fleet.

Who has the final say on whether a NASA aircraft is safe to fly?
The assigned NASA pilot and the Crew Chief must both sign off on the aircraft’s safety after conducting a final pre-flight walk-around.

Sources: NASA

CD Aviation Services (CDAS), a specialized turbine engine maintenance provider, has officially announced the acquisition of Supplemental Type Certificate (STC) SA1024SO. According to the company’s press release, this certification authorizes the installation of Honeywell TPE331-5-252K engines on the Twin Commander 690, 690A, and 690B Commercial-Aircraft series. The STC, previously associated with Aero Air, LLC, provides a Federal Aviation Administration (FAA)-approved pathway for operators to upgrade their legacy powerplants.

For the legacy aviation community, this acquisition represents a critical development in maintaining the airworthiness of aging fleets. The core of the upgrade involves transitioning the aircraft’s fuel control system from the older Bendix configuration to the more widely supported Woodward system. By bringing this STC in-house, CDAS aims to directly support Twin Commander operators facing growing industry concerns over parts availability and maintenance bottlenecks.

As out-of-production aircraft continue to age, the availability of approved modifications is vital for their continued operation. The official announcement highlights that this STC not only modernizes the engine configuration but also aligns the aircraft with current industry maintenance standards, ensuring these vintage twin-turboprops remain viable for years to come.

Technical Details of the Engine Upgrade

Transitioning from Bendix to Woodward Fuel Systems

The primary technical shift facilitated by STC SA1024SO is the conversion from the Honeywell TPE331-5-251K engine to the TPE331-5-252K engine. According to the provided research data, the most significant change in this upgrade is the replacement of the legacy Bendix Fuel Control Unit (FCU) with a Woodward FCU. The conversion is performed in strict accordance with Honeywell Service Bulletin SB 72-0216, which outlines the necessary steps for transitioning between the two fuel control systems.

Understanding the differences between these two systems is essential to grasping the value of the STC. The legacy Bendix system, found on early TPE331-5 engines, was largely air-based. Historical maintenance data indicates that these units were prone to operational issues, such as moisture freezing within the system. Today, Bendix-equipped engines represent a minority in the active fleet, and operators face severe challenges due to decreasing parts availability and limited overhaul support.

Conversely, the Woodward FCU is a predominantly hydraulic system that has become the industry standard for these engines. While the Woodward system has faced its own historical airworthiness directives, such as AD 2006-15-08, which required a switch from steel to plastic fuel splines to prevent runaway engines, it is vastly more serviceable within the modern aviation maintenance network. Furthermore, upgrading to the Woodward system is a prerequisite for further engine enhancements, such as the -10 upgrade.

Impact on the Twin Commander Fleet

Extending the Lifespan of Legacy Aircraft

The Twin Commander 690 series consists of twin-turboprop executive business aircraft built primarily between 1972 and 1979. Known for their high-wing design, impressive climb rates, and cruise speeds of up to 250+ knots, these aircraft remain popular in the used market. Because the airframes have been out of production for decades, maintaining and upgrading their powerplants is critical for their continued airworthiness.

The acquisition of this STC by CDAS offers tangible benefits to operators of these vintage aircraft. By providing a legal and practical method to replace obsolete Bendix systems, the STC effectively extends the operational lifecycle of the Twin Commander 690 series. Operators will no longer have to hunt for scarce Bendix components, as the -252K configuration offers much broader parts availability across the global supply chain.

Additionally, the Woodward system is widely understood across the global maintenance network. This familiarity leads to expanded overhaul capabilities and potentially lower maintenance downtimes for operators, ensuring that these legacy aircraft can be serviced efficiently by authorized repair stations worldwide.

“This STC provides operators with a clear and practical path forward when evaluating engine upgrades or addressing long-term support concerns. Our focus is on delivering solutions that improve aircraft reliability, maintainability, and overall lifecycle support.”

About CD Aviation Services

Headquartered in Joplin, Missouri, CD Aviation Services has specialized in small turbine engine maintenance for over 20 years. According to company statements, they operate as a Honeywell Authorized Part 145 repair station, focusing specifically on Honeywell TPE331 and TFE731 engines, as well as GTCP36 series Auxiliary Power Units (APUs).

The strategic acquisition of STC SA1024SO expands the company’s in-house capabilities, allowing them to directly support Twin Commander operators rather than relying on third-party certificate holders. This move solidifies their position as a dedicated support hub for legacy Honeywell turbine engines.

AirPro News analysis

We view the acquisition of STC SA1024SO by CD Aviation Services as indicative of a broader trend within the aviation maintenance, repair, and overhaul (MRO) sector. As original equipment manufacturers (OEMs) naturally shift their focus toward newer platforms, specialized MROs are stepping in to acquire the intellectual property and certifications necessary to keep legacy fleets airborne. By taking ownership of this STC, CDAS is not merely offering a repair service; they are actively solving a critical Supply-Chain bottleneck regarding the obsolete Bendix FCU. This proactive approach is essential for the survival of out-of-production airframes like the Twin Commander 690, ensuring that operators have a predictable, FAA-approved path for modernization and continued Compliance.

Frequently Asked Questions (FAQ)

What aircraft does STC SA1024SO apply to?
According to the FAA-approved certificate details, the STC applies specifically to the Twin Commander 690, 690A, and 690B series aircraft.

What is the main difference between the Bendix and Woodward FCU?
The legacy Bendix Fuel Control Unit is an older, air-based system that suffers from parts scarcity and historical reliability issues (such as moisture freezing). The Woodward FCU is a newer, hydraulic-based system that serves as the current industry standard, offering better parts availability and broader maintenance support.

Why is this STC important for Twin Commander operators?
It provides a legal, FAA-approved method to upgrade from the TPE331-5-251K engine to the -252K configuration, allowing operators to abandon the obsolete Bendix fuel system in favor of the supportable Woodward system, thereby extending the aircraft’s operational lifespan.

Sources

• CD Aviation Services