System Upgrades & Modifications

Fly safe under any conditions. With our system upgrades.

It is fundamental that you can rely on your avionic systems, when flying an aircraft or helicopter to the next destination.

We keep your flight deck, navigation & guidance systems, as well as your safety systems up-to-date and give you advice concerning the latest technologies, updates, mandates, and regulations - to find the best suitable solution for you.

As an European Aviation Safety Agency (EASA) Part 21 J and G approved Design and Production Organisation, GA-ATS MRO International is authorised to carry out minor and major modifications on aircraft and helicopters. Our Supplemental Type Certificates (STCs) evidence our reliability as a partner for customised modifications. We also certify modifications and changes through various other authorities, such as the FAA and other national aviation authorities. Combining this qualification with our experienced and skilled staff, you have the perfect partner for your system upgrade.


Business Jets Certification Services

Your innovative ideas are our priority. Discover our state-of-the-art solutions.

Our one-stop shop solutions include vast engineering support, so your creativity can progress to develop real applications. In addition to performing safety upgrades and system modifications on your aircraft, we are also able to certify them. As an European Aviation Safety Agency (EASA) approved  Part 21 J and G Design and Production Organization*, we are authorized to classify and carry out both minor and major modifications on your behalf. We also directly certify the minor modifications, saving you time. 

GA-ATS Design Organization (DOA) status means your project meets all quality and certification requirements - in full. This ensures you are provided with highly accurate offers, transparent reporting and reliable regulatory compliance. The EASA DO approval is officially recognized by the FAA and other national aviation authorities.

Rely on our engineering services for upgrading your flight deck as well as your navigation, guidance and safety systems. We also contribute to maximum in-flight comfort, with customized cabin renovations and in-flight entertainment (IFE) upgrades. Whatever your needs, you can count on us to take care of them.

Have a look through our list of minor modification approvals and STCs– we may already have an existing solution for you.

*DOA and POA, respectively

Minor and Major Modifications - List of Approvals



Flight Deck

A state-of-the-art flight deck ensures the continuous airworthiness of your aircraft and also enhances its value. Our flight deck upgrades ensure the continuous airworthiness of  your aircraft while also improving the situational awareness of your crew.

Choose to revamp your flight deck with new instruments, audio sensors and communication systems. Our technical specialists can provide you with the latest in LCD display and synthetic vision technology, and even redesign your entire cockpit to enhance safety, performance and aesthetics.

Flight Data Recorder/Cockpit Voice Recorder

Safeguard airworthiness. Count on our in-house flight data and cockpit voice recorder MRO shop.
Your aircraft is airworthy when the sensors have been routinely analyzed and evaluated during MRO tasks on flight data and cockpit voice recorders. Rely on our MRO expertise to secure continued accuracy for operational recordings.

Your flight data (FDR) and cockpit voice recording (CVR) devices require regular readout and testing services to ensure safe operations and continued airworthiness. Our FDR and CVR technical specialists are at your service for inspection, testing, repair, readout, modification, and overhaul. EASA and FAA approval included.

Benefit from our fast turnaround times, as well as the convenience and reduced cost of our exclusive remote diagnostics support. Our experts accept FDR and CVR “readouts from file” sent electronically. You save on the costs and, most importantly, the time associated with shipment logistics.

Continued airworthiness management is intrinsic to your effective fleet management. When your components are ready for their next maintenance task, our in-house component maintenance, repair and overhaul (MRO) shops are ready too. Benefit from reliable, low average turnaround times and precision testing. Our experienced specialists ensure we meet all your continued airworthiness requirements.

Navigation & Guidance Systems

The right technology for navigation and guidance systems is a key element for successful flying. We can provide you with upgrades to ensure your systems are precise, up-to-date, and compliant with the latest mandates and regulations.

We can install upgrades across a whole range of technology, such as flight management systems, GPS systems, WAAS LPV enhancements as well as navigation and communication systems. We can also raise your level of safety by installing head-up guidance systems, AHRS sensors, mode S transponders and enhanced vision systems. The technological advances are rapid, and we can help you keep up - for safety's sake.

ADS-B Out compliance for 2020 – equipping your aircraft for the future

Our engineering specialists integrate complete 2020 ADS-B Out compliance solutions for older aircraft  to meet the full scope of European Aviation Safety Agency (EASA) and Federal Aviation Administration (FAA) standards for ADS-B, including the later DO-260B. Avionics projects on ageing aircraft include wiring, modifications and new mechanical and electrical installations, as well as the upgrade of existing transponders to comply with the DO-260B (V2) standard for ADS-B Out. 2020 compliance upgrades also introduce the  Wide Area Augmentation System (WAAS) for Global Positioning System (GPS) sensors and the new  FMZ 2000 Flight Management System software version 6.1.. Future Air Navigation System (FANS) 1/A+, Protected Mode Controller Pilot Data Link Communications (PM-CPDLC) and Aeronautical Telecommunications Network Baseline 1 (ATN B1) are also essential to our 2020 compliance packages.

Opt to combine your compliance upgrade on your aircraft with a scheduled maintenance, repair and overhaul (MRO) event, and optimize the your aircraft’s downtime to achieve significant savings on both time and budget.


Compliance Guidelines
  • Commission implementing regulation (EU) No 1207/2011
  • EASA STC News
  • US Federal Aviation Administration (FAA) regulations

Safety Systems

Peace of mind when flying adds to your overall comfort. That's why passenger and crew safety is such a vital issue for us. We can offer you safety solutions that meet all your requirements while flying, as well as before and after the flight.

Our safety systems and services include an enhanced ground proximity warning system (EGPWS), a traffic collision alerting system (TCAS) and an electronic flight bag (EFB). In addition, we can offer you safe taxi and landing systems. Whether on the ground or in the air, we want to ensure you travel safely.

Cabin Communication Systems

The world doesn’t stop when you are in the air. Business deals are struck, stock markets are trading, currencies are rising and falling. And you need to know what’s going on.

We can outfit your aircraft with state-of-the-art technology so you can stay informed when you are on the go. From upgrades to completely new installations, we are capable of implementing the latest communication systems. Our technicians can set you up with high-speed broadband internet, GSM mobile applications, and wireless LAN WiFi options. We can do a SATCOM installation, too. We also offer SMS, messaging and fax. After all, the world still operates 24/7, even when you are in the air.


Structural Upgrades

You want to work with a reliabile, experienced partner for your aircraft upgrades. We can make our comprehensive know-how available to you for strucutral modifications.

The work we can do ranges from fuselage cutouts to the installation of SATCOM systems and nose masts. In addition, we can modify tail cones and wings and also integrate attachment points for external stores (sensor containers and spray tanks). Take advantage of our expertise for the modifications you need for your aircraft.



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capability Booklet
Business Aviation

You have individual needs.
We offer individual solutions.

Video - "Watch the Dornier 228 in the Wind Tunnel" - coming soon

Latest modification: 17.08.2022