Diagnose, adjust, repair, or overhaul aircraft engines and assemblies, such as hydraulic and pneumatic systems.

• Aircraft Body Repairer
• Airframe-and-Power-Plant Mechanic
• Airframe-and-Power-Plant-Mechanic Apprentice
• Bonded Structures Repairer
• Experimental Aircraft Mechanic
• Experimental-Rocket-Sled Mechanic
• Rocket-Engine-Component Mechanic

• Accompany aircraft on flights to make in-flight adjustments and corrections.
• Assemble and install electrical, plumbing, mechanical, hydraulic, and structural components and accessories, using hand or power tools.
• Check for corrosion, distortion, and invisible cracks in the fuselage, wings, and tail, using x-ray and magnetic inspection equipment.
• Clean engines, sediment bulk and screens, and carburetors, adjusting carburetor float levels.
• Clean, refuel, and change oil in line service aircraft.
• Clean, strip, prime, and sand structural surfaces and materials to prepare them for bonding.
• Communicate with other workers to coordinate fitting and alignment of heavy parts, or to facilitate processing of repair parts.
• Conduct routine and special inspections as required by regulations.
• Cure bonded structures, using portable or stationary curing equipment.
• Determine repair limits for engine hot section parts.
• Disassemble engines and inspect parts, such as turbine blades and cylinders, for corrosion, wear, warping, cracks, and leaks, using precision measuring instruments, x-rays, and magnetic inspection equipment.
• Examine and inspect aircraft components, including landing gear, hydraulic systems, and deicers to locate cracks, breaks, leaks, or other problems.
• Examine engines through specially designed openings while working from ladders or scaffolds, or use hoists or lifts to remove the entire engine from an aircraft.
• Fabricate defective sections or parts, using metal fabricating machines, saws, brakes, shears, and grinders.
• Inspect airframes for wear or other defects.
• Inspect completed work to certify that maintenance meets standards and that aircraft are ready for operation.
• Install and align repaired or replacement parts for subsequent riveting or welding, using clamps and wrenches.
• Inventory and requisition or order supplies, parts, materials, and equipment.
• Listen to operating engines to detect and diagnose malfunctions such as sticking or burned valves.
• Locate and mark dimensions and reference lines on defective or replacement parts, using templates, scribes, compasses, and steel rules.
• Maintain repair logs, documenting all preventive and corrective aircraft maintenance.
• Maintain, repair, and rebuild aircraft structures, functional components, and parts such as wings and fuselage, rigging, hydraulic units, oxygen systems, fuel systems, electrical systems, gaskets, and seals.
• Measure parts for wear, using precision instruments.
• Measure the tension of control cables.
• Modify aircraft structures, space vehicles, systems, or components, following drawings, schematics, charts, engineering orders, and technical publications.
• Obtain fuel and oil samples and check them for contamination.
• Prepare and paint aircraft surfaces.
• Read and interpret maintenance manuals, service bulletins, and other specifications to determine the feasibility and method of repairing or replacing malfunctioning or damaged components.
• Read and interpret pilots' descriptions of problems to diagnose causes.
• Reassemble engines following repair or inspection and reinstall engines in aircraft.
• Remove or cut out defective parts or drill holes to gain access to internal defects or damage, using drills and punches.
• Remove or install aircraft engines, using hoists or forklift trucks.
• Remove, inspect, repair, and install in-flight refueling stores and external fuel tanks.
• Replace or repair worn, defective, or damaged components, using hand tools, gauges, and testing equipment.
• Service and maintain aircraft and related apparatus by performing activities such as flushing crankcases, cleaning screens, and lubricating moving parts.
• Spread plastic film over areas to be repaired to prevent damage to surrounding areas.
• Test operation of engines and other systems, using test equipment such as ignition analyzers, compression checkers, distributor timers, and ammeters.
• Trim and shape replacement body sections to specified sizes and fits and secure sections in place, using adhesives, hand tools, and power tools.

• adhere to safety procedures
• adjust or set mechanical controls or components
• align or adjust clearances of mechanical components or parts
• align or adjust clearances of vehicle body parts or components
• align vehicle frame
• apply adhesives, caulking, sealants, or coatings
• apply cleaning solvents
• apply filler substances to dents in vehicle bodies
• apply protective coating to products
• assemble, dismantle, or reassemble equipment or machinery
• build or repair structures in construction, repair, or manufacturing setting
• climb ladders, scaffolding, or utility or telephone poles
• conduct tests to locate mechanical system malfunction
• cut metal or plastic
• determine installation, service, or repair needed
• determine material or tool requirements
• determine project methods and procedures
• diagnose malfunctioning vehicle systems
• diagnose mechanical problems in machinery or equipment
• dismantle or reassemble rigging
• erect scaffold
• examine products or work to verify conformance to specifications
• fabricate aircraft parts
• fabricate sheet metal parts or items
• fabricate, assemble, or disassemble manufactured products by hand
• file, sand, grind, or polish metal or plastic objects
• follow vehicle repair procedures
• identify base metals for welding
• identify properties of metals for repair or fabrication activities
• inspect machinery or equipment to determine adjustments or repairs needed
• laminate objects
• lay out machining, welding or precision assembly projects
• lubricate machinery, equipment, or parts
• maintain or repair cargo or passenger vehicle
• maintain welding machines or equipment
• make independent judgment in assembly procedures
• move or fit heavy objects
• observe or listen to machinery or equipment operation to detect malfunctions
• operate forklift
• operate hoist, winch, or hydraulic boom
• operate lathes
• operate pneumatic test equipment
• operate sheet metal fabrication machines
• operate vehicle engine electrical system test equipment
• overhaul vehicle major operating units, such as engines or transmissions
• perform safety inspections in industrial, manufacturing or repair setting
• read blueprints
• read schematics
• read specifications
• read technical drawings
• read vehicle manufacturer's specifications
• read work order, instructions, formulas, or processing charts
• recognize characteristics of alloys
• recognize characteristics of metals
• repair aircraft ignition or ignition systems
• repair aircraft propulsion systems
• repair commercial transportation equipment
• repair or replace electrical wiring, circuits, fixtures, or equipment
• repair or replace malfunctioning or worn mechanical components
• repair sheet metal products
• repair vehicle body parts
• set up and operate variety of machine tools
• solder metal parts or components together
• stretch, bend, straighten, shape, pound, or press metal or plastic
• test electrical/electronic wiring, equipment, systems or fixtures
• test mechanical products or equipment
• understand service or repair manuals
• understand technical operating, service or repair manuals
• use acetylene welding/cutting torch
• use arc welding equipment
• use auto or vehicular body repair equipment
• use aviation electronics
• use electrical or electronic test devices or equipment
• use electronic calibration devices
• use engine diagnostic equipment
• use hand or power tools
• use knowledge of metric system
• use knowledge of welding filler rod types
• use lifting equipment in vehicle repair setting
• use machine tools in installation, maintenance, or repair
• use pneumatic tools
• use precision measuring devices in mechanical repair work
• use precision measuring tools or equipment
• use soldering equipment
• use voltmeter, ammeter, or ohmmeter
• use x-ray or magnetic inspection techniques
• weld together metal parts, components, or structures