66.What is the main function of the APU ?

595.What is the function of the AMU ?

594.Which RMP can control the VHF 1 transceiver?

593.In normal operation,are the navigation systems controlled by RMP1 ?

592.What happens if RMP2 fails

591.What is the purpose of the AMU?

590.What is the purpose of the RMPs ?

589.The HOT AIR pushbutton switch controls the:

588.What does the FWD SIOL VALVE pushbutton switch control?

587.When does the skin heat exchanger operate on ground?

586.When does the skin exchanger inlet bypass valve open?