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CD Aviation Services Acquires STC for Twin Commander Engine Upgrade

CD Aviation Services acquires STC SA1024SO to authorize Honeywell TPE331-5-252K engine upgrades on Twin Commander 690 series, improving maintenance support.

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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.

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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.”

— CD Aviation Services, via official press release

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.

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Photo Credit: CD Aviation Services

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Airbus and Air France Launch A350 Component Support JV

Alpha Component Solutions, a 50-50 Airbus and Air France joint venture, launches with contracts covering 500+ A350 aircraft.

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Airbus and Air France Launch A350 Component Support JV

Airbus and Air France have officially launched Alpha Component Solutions, an equally owned joint venture designed to manage component support and supply chain services for the expanding global Airbus A350 fleet.

In a press release issued on October 28, 2026, the European manufacturer confirmed the finalization of the partnership with the Air France-KLM Group. The new entity integrates Airbus Flight Hours Services (FHS) with Air France Industries KLM Engineering & Maintenance (AFI KLM E&M) to operate a worldwide shared-access component pool.

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Integrating maintenance and engineering expertise

The joint venture aims to address the long-term maintenance requirements of Airbus A350 operators by providing aircraft component assets, repairs, and supply chain management. At launch, Alpha Component Solutions already holds contracts to support more than 500 Airbus A350 aircraft worldwide.

Anne Brachet, Executive Vice President of Air France-KLM Engineering & Maintenance, stated that reliable access to components is essential for maintaining fleet availability and operational performance.

“At AFI KLM E&M, we combine extensive maintenance expertise with firsthand airline operational experience. By combining this understanding with Airbus’ FHS capabilities, Alpha Component Solutions will provide customers with a broader support network and solutions tailored to their operational needs.”

Cristina Aguilar Grieder, Senior Vice President of Customer Services Commercial Aircraft at Airbus, noted the venture represents a major step forward in delivering optimized solutions to customers globally.

“This joint venture represents a major step forward in enhancing our A350 component support, bringing together the expertise and resources of both Airbus and Air France Industries KLM Engineering & Maintenance to deliver optimised solutions to our customers worldwide.”

A three-year path to operational launch

The formation of Alpha Component Solutions follows a lengthy regulatory and organizational process. Airbus and Air France-KLM first announced exclusive negotiations to establish the joint venture on September 4, 2023. At that time, the companies projected the entity would be operational by the first half of 2024.

The timeline extended as the parties worked to finalize the structure and secure regulatory clearances. A formal agreement establishing equal ownership was signed in December 2024. The European Commission subsequently granted unconditional regulatory approval for the joint venture in April 2026.

The transfer of component activities to the new entity became effective on September 30, 2026. To form the operational base, Air France transferred Airbus A350 component activities from its facilities in Villeneuve-le-Roi, Paris Charles de Gaulle Airport (CDG), and Paris Orly Airport (ORY). Airbus contributed its component activities based in Blagnac, near its Toulouse headquarters. The consolidated joint venture is now headquartered in Tremblay-en-France, near Paris Charles de Gaulle Airport.

Scaling support for a growing widebody fleet

The launch of Alpha Component Solutions aligns with the rapid expansion of the global Airbus A350 fleet. According to industry data, 736 Airbus A350 aircraft were in service worldwide at the end of September 2026.

As the in-service fleet matures and grows, demand for aftermarket support, component pooling, and efficient supply chain management has increased. The joint venture model allows both the original equipment manufacturer (OEM) and a major maintenance, repair, and overhaul (MRO) provider to share the capital burden of maintaining a global inventory of high-value components.

AirPro News analysis

The finalization of Alpha Component Solutions highlights a broader industry shift toward OEM-MRO collaboration in the aftermarket sector. Historically, manufacturers and independent maintenance providers often competed directly for component support contracts. By pooling the engineering authority of Airbus with the frontline operational experience of Air France Industries KLM Engineering & Maintenance, the two entities can offer a more resilient supply chain to operators. This is particularly critical in the current aerospace environment, where supply chain bottlenecks continue to challenge fleet availability. Securing support contracts for over 500 aircraft at launch guarantees the joint venture immediate scale and market dominance in the Airbus A350 component sector.

Photo Credit: Airbus

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Bridger Aerospace and Metatek Sign BT-67 Survey Agreement

Bridger Aerospace and Metatek Group agree to deploy three Basler BT-67s for geophysical surveying in a deal worth $58M per aircraft.

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Bridger Aerospace and Metatek Sign BT-67 Survey Agreement

Bridger Aerospace Group Holdings, Inc. (NASDAQ: BAER) and Metatek Group Ltd. (TSX: MTEK) have signed a long-term aircraft services agreement to deploy three modified Basler BT-67 aircraft for global geophysical surveying.

Announced in a joint press release on October 27, 2026, the partnership provides Bridger Aerospace with a year-round revenue stream outside its traditional seasonal wildfire suppression business. The arrangement allows Metatek to expand its airborne survey operations into extreme cold-weather markets without the capital expenditure required to establish an in-house flight department.

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Financial structure and operational utilization

Under the terms of the agreement, Bridger Aerospace will modify, operate, and maintain the three turbine-converted aircraft on behalf of Metatek. The contract specifies an initial five-year term for each aircraft, which includes an automatic five-year extension unless a notice of non-renewal is provided by either party.

The financial structure shifts Bridger Aerospace away from purely seasonal firefighting contracts by securing fixed monthly availability fees combined with flight-hour charges. The company estimates aggregate gross revenue of $58 million over the assumed ten-year period for the first aircraft alone. The operational model is designed to support a 70 percent target utilization rate for Metatek’s global survey missions.

In the October 27 press release, Bridger Aerospace President and Chief Executive Officer Sam Davis highlighted the strategic shift for the operator.

“This agreement marks a transformational milestone in Bridger’s strategy to build diversified, durable revenue streams beyond wildfire suppression and expand into long-term, recurring global operations.”

Aircraft modification and sensor integration

The platform selected for the survey missions is the Basler BT-67, a heavily modified and remanufactured Douglas DC-3/C-47 airframe produced by Basler Turbo Conversions in Oshkosh, Wisconsin. Equipped with Pratt & Whitney PT-6 turbine engines and modernized avionics, the BT-67 is utilized in specialized aviation for its short takeoff and landing (STOL) capabilities and proven durability in extreme cold-weather environments.

Bridger Aerospace will manage the comprehensive sensor and mission systems integration for the three aircraft. This process covers initial engineering, structural modification, and final certification. The aircraft will be specifically configured to carry Enhanced Full Tensor Gravity Gradiometry (eFTG) systems.

Metatek Group Chief Executive Officer Dr. Mark Davies stated that the company requires dependable aviation capacity to support its existing operations and its next phase of growth, which includes additional eFTG systems currently on order from Lockheed Martin.

The first modified Basler BT-67 is scheduled to be ready for deployment and enter service in the second half of 2027. The remaining two aircraft are expected to be delivered over the subsequent three years, between 2028 and 2030.

Bridger and Metatek market positioning

The agreement bridges two distinct sectors of specialized aviation and aerospace services. Based in Belgrade, Montana, Bridger Aerospace was founded in 2014 and has built its operational footprint primarily around federal and state aerial firefighting contracts. The company operates a fleet that includes Viking CL-415EAF Super Scoopers, Pilatus PC-12s, and Kodiak aircraft. Because fire suppression is inherently tied to the North American summer and autumn months, the company has historically faced highly seasonal revenue cycles.

Headquartered in Calgary, Alberta, Metatek Group specializes in subsurface mapping for the minerals and energy resource sectors. The company utilizes both eFTG and Digital Full Tensor Gravity Gradiometry (dFTG) technologies to conduct high-resolution airborne surveys. By outsourcing the aviation component of its expansion, Metatek avoids the regulatory and capital burdens of acquiring an air operator certificate and maintaining a specialized cold-weather flight department.

AirPro News analysis

We view this agreement as a critical structural hedge for Bridger Aerospace against the inherent volatility of the North American fire season. By securing a ten-year revenue baseline with fixed monthly availability fees, the operator stabilizes its cash flow during the winter months, which has traditionally been a dormant period for aerial firefighting providers. For the geophysical survey sector, Metatek’s choice to outsource its aviation operations highlights the growing complexity of specialized flight operations. Operating legacy airframes like the Basler BT-67 in extreme environments requires a specific maintenance and engineering infrastructure that is difficult for a technology and data company to scale internally.

Photo Credit: Bridger Aerospace

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FL Technics Indonesia Earns EASA Part-145 Certification in Bali

FL Technics Indonesia receives EASA Part-145 approval for its Bali MRO facility, covering A320 and Boeing 737 maintenance.

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FL Technics Indonesia Earns EASA Part-145 Certification in Bali

FL Technics Indonesia has secured European Union Aviation Safety Agency (EASA) Part-145 certification for its maintenance, repair, and overhaul (MRO) facility at I Gusti Ngurah Rai International Airport (DPS) in Bali. The approval, announced on October 26, 2026, authorizes the provider to perform base and line maintenance on aircraft registered in the European Union.

The certification positions the Indonesian subsidiary as one of the few MRO providers in the country capable of servicing European carriers and other operators that mandate EASA-approved maintenance standards. According to a press release issued by the company, the approval covers the globally ubiquitous Airbus A320 family, including both CEO and NEO variants, alongside Boeing 737 Classic, Next-Generation (NG), and MAX aircraft.

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Expanding capacity for European and international fleets

The regulatory approval follows a series of comprehensive technical and quality audits conducted by EASA inspectors. These evaluations assessed the hangar infrastructure, tooling systems, and the engineering workforce at the Bali site to ensure compliance with European aviation safety regulations.

With the certification secured, the facility is scheduled to commence maintenance work for its first European Union-based operator in early November 2026. Additional aircraft arrivals from European operators are expected later in the month.

Martynas Grigas, Chairman of FL Technics Indonesia, highlighted the immediate impact of the regulatory milestone:

“The facility is preparing to start the work for an EU-based operator by next week, with further arrivals expected in November 2026. FL Technics Indonesia is also positioned to serve operators across Asia, the Middle East, and Australia that require EASA-approved maintenance.”

Prior to receiving the EASA certification, the Bali facility had already been providing maintenance solutions for aircraft registered across the Americas, Asia, Africa, and Australia. The new approval allows the company to capture maintenance demand from European carriers operating in or flying to the Asia-Pacific region.

Building the Bali maintenance hub

The development of the Bali facility was initiated on August 17, 2023, through a joint operations agreement between FL Technics, PT Angkasa Pura Properti, and PT Angkasa Pura I. FL Technics committed an initial investment of US$25 million to construct the MRO hub, designed to serve the growing maintenance needs for narrowbody aircraft in the Asia-Pacific region.

The 17,000-square-meter facility officially opened on November 29, 2024. It features a 2,000-square-meter purpose-built paint booth. The October 26, 2026, announcement describes the site as featuring three hangars with three aircraft bays, though earlier company statements at the time of its 2024 opening referenced a six-bay maintenance capacity.

FL Technics global footprint

FL Technics Indonesia, operating legally as PT Avia Technics Dirgantara, is a subsidiary of FL Technics, which is itself part of the Avia Solutions Group. The EASA certification in Bali represents a continuation of the parent company’s strategy to expand its global hangar network and capture a larger share of the international narrowbody maintenance market.

The company operates a network of hangars across multiple continents. In addition to its Indonesian facilities in Jakarta and Bali, FL Technics maintains operations in Prestwick, United Kingdom; Vilnius and Kaunas, Lithuania; and Punta Cana, Dominican Republic. The company has also pursued growth through acquisitions, notably purchasing Czech MRO provider JOB AIR Technic in June 2025 to add significant capacity in Central Europe.

AirPro News analysis

Securing EASA Part-145 certification in Southeast Asia provides FL Technics with a distinct strategic advantage. As global narrowbody fleets expand and MRO slots in Europe and North America remain heavily constrained, European airlines and lessors are increasingly looking further afield for heavy maintenance capacity. A certified facility in Bali allows European operators to utilize lower-cost, high-quality maintenance in the Asia-Pacific region, which is particularly valuable for aircraft transitioning between lessees or undergoing heavy checks.

Furthermore, EASA certification acts as a global gold standard. Many operators in the Middle East, Africa, and Australia mandate EASA-approved maintenance in their contracts, even if their aircraft are not registered in the European Union. By elevating the Bali facility to this regulatory standard, FL Technics effectively unlocks a much broader international customer base beyond its immediate geographic region.

Photo Credit: FL Technics

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