The airplane electrical system is an integral part of the aviation industry, powering everything from the cockpit to the cabin. There are several synonyms used interchangeably with the term "airplane electrical system," such as aircraft electrical system, avionics system, and aviation electrical system. The avionics system refers specifically to the electronic systems used in aircraft, while the aircraft electrical system encompasses all electrical components from the engine to the cabin. The aviation electrical system is a broader term that includes electrical systems used in helicopters, drones, and other aircraft modes. Regardless of the synonym used, the ability to maintain and repair airplane electrical systems is critical to the safety and success of aviation.