Military Grades: ENLISTED GENERAL EXPERIENCE: Experience or training that has provided the ability to perform assembly and disassembly operations and make prescribed modifications to aircraft engines, engine assemblies, and accessories in accordance with technical specifications, procedures, and requirements. Experience using hand and power tools common to the trade. SPECIALIZED EXPERIENCE: Must have at least 18 months experience or training performing standard, routine assembly and disassembly operations and making prescribed modifications to aircraft engines, engine assemblies, and accessories. Experience or training performing maintenance overhaul, troubleshooting, testing, and repair of aircraft engines, engine components, and powertrains for fixed and/or rotary wing aircraft. Experience determining maintenance needed from work orders, inspection reports, historical records, and diagnosis.