Helicopter maintenance refers to the systematic process of inspecting, servicing, repairing, and overhauling helicopters to ensure their safe and efficient operation. This includes routine checks, scheduled maintenance, and unscheduled repairs based on the condition of the aircraft and regulatory requirements. Maintenance tasks may encompass various aspects such as the airframe, engines, avionics, and rotor systems. Helicopter maintenance is crucial for safety, as it helps to identify and rectify potential issues before they lead to failures. It is typically performed by certified aviation technicians who follow specific regulatory guidelines set by aviation authorities, to ensure compliance and maintain airworthiness standards.