Robinson Service Centre Helicopter maintenance is a major part of National Helicopters' business. Helicopter operators are well aware of the real costs of equipment ownership. As a Robinson Service Centre, National Helicopters can provide professional and quality service. Our in-house maintenance and technical engineers are professionally trained in the latest helicopter repair and servicing techniques. Maintenance personnel have received the Robinson manufacturers technical course. Our experienced maintenance staff assures no delays in maintaining aircraft within our facility and remote sites which minimizes any downtime for customer's helicopters. Full running maintenance, repair and 2200 hour overhaul for the Robinson R44 and R22 series is carried out in our Kleinburg facility. Our inventory of spare parts and rotary components ensure high aircraft utilization and timely job completion.