Which hydraulic system(s) is responsible for powering the flaps?

The hydraulic systems that are responsible for powering the flaps are the Green and Yellow systems. The Green system primarily handles the operation of critical flight control surfaces and is known for its reliability. The Yellow system can also power the flaps, providing redundancy in the event of failure in the Green system. This design ensures that the flaps have a reliable source of hydraulic power, enhancing the aircraft's safety and operational effectiveness.

Using both systems allows for a backup option should one system experience a malfunction. The Green system, powered by engine-driven pumps, operates under normal circumstances, while the Yellow system can take over when needed, making it crucial for flap operation.