One of the most essential and fundamental components of a plane is its fuel system. Aircraft fuel systems are complex, which is why it takes highly trained specialists to maintain, troubleshoot, and repair them. As an Aircraft Fuel Systems specialist, you'll learn every inch of a plane's fuel system and become an expert in your field, gaining skills that are transferable into a rewarding civilian career. In this job, you’ll repair, inspect, install, and modify aircraft fuel systems, including integral fuel tanks, bladder cells, and external tanks.