Maintains, repairs and modifies aircraft structures, aircraft ordnance systems, egress systems, structural components and engines of complex to extreme difficulty, maintains and repairs aircraft components including but not limited to flight controls, engines, hydraulics, aviation ordnance systems, pneumatics, fuel systems and mechanical components, and applies technical knowledge of airframe, ordnance and power plant systems in determining equipment malfunctions and applies technical expertise in restoring equipment condition and operation. Shall have authority to direct Level I or II work center personnel to accomplish specific maintenance actions as required to accomplish maintenance tasking in accordance with Department of Labor Skill Code definitions (responsible for providing guidance and technical expertise to lower level technicians throughout all aircraft modifications and/or maintenance efforts.).