Charlie Duchek, A&P, Director of Maintenance has over twenty years of experience in flying and maintaining Robinson Helicopters. He has over 6,100 hours of helicopter flight time, including over 4,000 hours in R22 and 1,000 hours in R44 helicopters. He has been working on Robinson helicopters since his first factory maintenance training in 1991. He has over 5,000 hours of flight time as a Flight Instructor (CFI and CFII), mostly in Robinson helicopters. Who better to know how to diagnose and repair or overhaul a Robinson helicopter than a mechanic and pilot with over 5,000 hours in Robinson helicopters?