Few companies have as broad a scope of services to support the aviation industry and the financial stability of AAR. AAR Engineering Services offers a wide range of high-quality, cost-effective technical services to meet your engineering needs. No project is too large or too small for our Engineering Services group. We specialize in interior reconfigurations, structural and systems modifications, and avionics upgrades requiring FAA or EASA STCs. With our core competencies in total logistics solutions and our technical expertise and history with many different fleet types, AAR is uniquely positioned to provide the resources necessary to meet your engineering needs.