• Performed scheduled inspection such as ; Pre-flight and Post-flight inspection, 10 hours, 150 hours, 600 hours, 1200 hours, 3 months, 6 months, 1 year, 2 years, and 4 years interval inspection in accordance with latest applicable manufacturer’s manual.• Performed rotor systems tracking/balancing and tail rotor drive system balancing using Honeywell Chadwick Helmuth Vibration Expert (VXP) equipment, Rotor Analysis Diagnostic System Advance Technology (RADS-AT) equipment and Chadwick Helmuth model 8370 Strobex Balancer equipment in accordance with applicable manufacturer’s and equipment operation manual.• Performed main rotor and tail rotor control linkages rigging.• Performed detailed inspection, disassembly and assembly of main rotor mast system .• Performed detailed inspection, disassembly and assembly of main gearbox system.• Performed removal and installation for detailed inspection of the engine to MGB coupling system.• Performed detailed inspection and replacement of tail rotor hub spherical laminated bearing and pitch change spider assembly lip seal or dust seal.• Performed disassembly, assembly and parts replacement of skid landing gear.• Performed replacement of hydraulic and oil hoses.• Performed Freon air-conditioning servicing, changing of components.• Performed tail boom replacement and removal and installation of the systems attached in it.• Performed removal and installation of AS350 engine Arriel 1D1.• Performed main rotor RPM or NR speed rigging.• Performed engine compressor washing.• Performed removal and installation of engine starter generator for detailed inspection and for replacement of carbon brush.• Performed detailed inspection and servicing on engine such as; changing of oils, cleaning or replacing filters, cleaning jet nozzles, fuel nozzle, check valves, oil, fuel and pneumatic lines, P2 ducting, casing, bleed valves, compressor, combustion section, engine accessory gearbox and exhaust pipe.