The auxiliary power comprises the Auxiliary Power Unit (APU), the electronic control box (ECB), and mounting hardware. The APU in use on the A380 is the PW 980A APU. The APU primarily provides air to power the Analysis Ground Station (AGS) on the ground and to start the engines. The AGS is a semi-automatic analysis system of flight data that helps to optimise management of maintenance and reduce costs. The APU also powers electric generators that provide auxiliary electric power to the aircraft.