Aircraft maintenance technicians run diagnostics and repair problems on airplanes and other aircraft. In this role, you examine the aircraft, identify issues that affect the ability to fly or safety of the crew, and fix or replace parts. Aircraft maintenance technicians work with multiple aircraft systems, including motors, wings, and electrical systems. You may also be responsible for performing routine inspections on the machines to ensure they continue to run smoothly. Some aircraft maintenance technicians specialize in specific types of aircraft, such as commercial jet planes or military aircraft. Aircraft maintenance technicians also maintain FAA certification and sometimes other licenses or certifications as necessary.