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Aircraft conversions from one single source – realising solutions on a cost-effective basis

As an aeronautical engineering company approved by EASA, we aren’t just committed to complying with the current European regulations and high standards of aviation. Our team consists of highly motivated, customer-oriented, experienced technicians and engineers. We are passionate about fulfilling the wishes of our customers, and our goal is to offer you the best possible, cost-effective solutions for your aircraft. In deciding on Air Alliance you have a competent and reliable partner by your side. From the initial conceptual idea for your aircraft, to the implementation, through to the final approval of the modifications according to European guidelines. We advise, plan, develop and integrate individual solutions that are tailored flawlessly to your aircraft, all from one single source.


Our passion for flying finds its expression in a private or business aircraft which suits you to perfection.


Development and approval

From the private CS-23 small aircraft, to CS-27 helicopters through to commercially-used CS-25 large aircraft – individual requirements cannot normally be fulfilled with standard solutions. Our EASA Part 21J approval as an organisation for aviation design allows us to offer you individual solutions for your aircraft. Experienced engineers manage the conceptualisation and EASA-compliant approval of your conversion requirements for the avionics and cabin equipment. Tell us about your requirements, and we will be pleased to advise you about the realisation options.

Production and certification of aircraft components

It isn’t always possible for individual solutions to be realised with standard components. Our manufacturing facility, which is approved according to EASA part 21G, specialises on the production of metal components and ready-to-install cable harnesses. On the basis of the approved design data of our part 21J Design Organisation, we are able to manufacture components that are aligned perfectly with your requirements and to certify them for installation in your aircraft.


Installation and modification

Alongside continuous further development and process optimisations, we have been a reliable and strong partner for our customers for more than 25 years. Our MRO department, which is approved according to EASA Part 145, is able to draw on professional and experienced technicians who work closely with our engineers to realise your individual solution. This makes a significant contribution to ensuring a smooth conversion process, and reduces the required downtime of your aircraft to the minimum.

Avionics installation

For the modernisation of your cockpit, we work closely with well-known manufacturers of avionics systems, such as Garmin and Honeywell International. From a simple USB connection, ADS-B capable Mode-S transponders, through to the latest autopilot systems and highly integrated electronic primary flight displays. We will be pleased to make you attractive offers, if required, as a complete package from a single source; including the installation, sale of equipment and STC or minor design change documents.

Blackhawk engine modification

As an authorised Blackhawk Aerospace Installation Centre, we are your professional partners for engine conversions on Cessna 208/208B Caravan, Beechcraft King Air Series and Piper PA-31 Cheyenne. Please contact us for further information and an individual consultation.


Air Alliance holds EASA Part 145 maintenance organisation approval and EASA Part 21 J Design Organisation approval.



Our strengths – your leading edge


We have been operating in the avionics and aviation sector since 1993. Our expertise is based on a non-reproducible wealth of experience.

A comprehensive portfolio

Consider us to be a partner for all your concerns. We can offer you a comprehensive range of products and services.

Certified quality

Safety and attention to detail are our top priorities. Our maintenance organisation is certified according to EASA Part 145 of the European Aviation Authority.

Retrofitting requests

As a Design Organisation certified according to EASA Part 21, we can carry out conversion requests and design modifications to your aircraft and take care of the official approval.

International network

Our business network is positioned ideally for the implementation of your needs and requirements.


One of the most important success factors for satisfied customers is our enthusiasm for our profession. It motivates us to be a step ahead at all times.

Contact Us

We look forward to hearing from you. Call us or send us an email. A contact person from the relevant specialist department will get in touch with you.

Careers at Air Alliance

Working at Air Alliance means growing with new challenges. As an individual and as a team. Whether it is on the ground or in the air – with us, you can put your strengths to good use.


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