An Aircraft Maintenance Engineer Category M (AME-M) is responsible for the certification of an aircraft after maintenance, inspection, repair or modification. This is a responsible occupation requiring a high degree of responsibility and skill, which includes:
certifying the airworthiness of airframe, piston and turbine engines, electrical/electronic systems, propellers, and rotary systems,
troubleshooting aircraft structural, mechanical, or electrical systems to identify problems,
adjusting and repairing systems according to specifications, technical drawings, manuals, and established procedures,
repairing and overhauling aircraft structural, mechanical, or electrical systems,
installing or modifying aircraft engines, mechanical, hydraulic, electrical, flight control, fuel and pneumatic systems,
dismantling airframes, aircraft engines, or other aircraft systems for repair, overhaul, inspection, and reassembly, and
supervising, performing, and documenting routine maintenance.