AIRCRAFT ENGINE MECHANIC- TITLE 32

Aircraft Engine Mechanic

As an Aircraft Engine Mechanic, WG-8602-10, you will:

• Remove, install, certify, repair, modify, overhaul, and install turboprop engines, reduction gear boxes, turbine modules, compressor modules, auxiliary power units, propellers and related propeller components as required. Perform maintenance on all propulsion systems including troubleshooting and diagnosing defects, certifying, conducting bench checks, performing in-shop and on-equipment repairs and overhaul. Diagnose malfunctions using computerized test equipment, schematic diagrams, technical publications and perform the appropriate repair according to the test results and analysis. Determine the extent of disassembly necessary to repair, overhaul, replace and certify all engine, propeller and auxiliary power unit parts. Clean and inspect engine and propeller component parts such as turbines, gearboxes, blades, gears, bearings, etc. Assemble engines, propellers and auxiliary power units, adhering to prescribed procedures, torque values, safety methods and clearances. Troubleshoot propellers using electric and hydraulic test stands to check for proper operation and evidence of oil leakage. Operationally check engines and propeller assemblies and auxiliary power units, by using the engine test cell facility to meet all full power run checks on the engine and propeller assemblies and auxiliary power units.
• Modify engines, propellers, auxiliary power units, and components in accordance with Time Compliance Technical Orders (TCTO) directives; remove and install engine quick change kits; prepare engines for installation and install engine and propeller assemblies on aircraft. Evaluate technical problems of repair, overhaul, modification and installation of aircraft propulsion systems. Solve all types of maintenance problems and perform bench checks and test engine and propeller assemblies for serviceability.
• Perform operational checks of installed propellers, engines, auxiliary power units and sub-systems during aircraft maintenance ground runs in accordance with approved checklists. Employ test equipment such as computer borescope, fuel pressure gauges, air pressure gauges, and alignment fixtures. Utilize special tools and precision measuring equipment, high-pressure hydraulic test equipment, and electronic test equipment.
• Perform isochronal and special evaluations on engines, propellers and auxiliary power units. Interpret certification findings and determine adequacy of corrective action. Certify installed and repaired engines for compliance with technical publications. Perform fixed and mobile test stand functions (which may include maintenance of engine test cell facility); install special test equipment; perform pre-operational and post operational checks. Operate engines and propellers and record test data. Operate, certify, and maintain computerized engine test/trim automated systems (ETTAS) on the engine test cell. Evaluate, identify and correct problems on propeller and engine components causing vibration or impending failure using the ETTAS system, and vibration analyzer. Evaluate engine and propeller performance by computing engine torque and specific fuel consumption. Monitor engine RPM and turbine inlet temperatures. Evaluate engine and propeller performance and accept or reject the individual components. Remove engine and propeller from test stand and prepare units for aircraft installation or storage. Accomplish operator maintenance on the aircraft and engine sound suppressor facility, test stands and various pieces of ground equipment, including the auxiliary power unit test cell. Perform dynamic propeller balancing and test the propeller integrated synchophasing. Test variable potentiometers, servo-motors, indicators and aircraft wiring.
• Perform aircraft full power runs and complete engine and propeller efficiency checks. Clear Red X symbol documentation on engine and propeller related components. Prepare man-hour data collection and required forms for input into the Core Automated Maintenance System (CAMS) or the G081 (AFI 22-2101, CAMS for Mobility). Review and assist in maintaining Technical Orders (TOs) and other technical publications and directives pertinent to the element. Maintain bench stock, parts, and equipment. Assist the material control function in identifying part numbers and stock numbers for processing and controlling of repair cycle assets. Provide on-the-job training for assigned personnel. Plan and conduct formal classes of instruction in techniques of repair and maintenance of aircraft engine, propeller, auxiliary power unit, and related equipment and in the use of diagrams, blueprints, wiring schematics and technical publications. Evaluate effectiveness of training by observation and through written and oral examinations. Advise supervisor of the experience and skill levels of assigned personnel. Maintain training documentation.
• Perform other duties as assigned.