492.When the APU fire pb is released out,which valve is affected ?

169.When does the red RA flag appear on the PFD ?

168.With DH of 100ft entered on the Multipurpose Control Display Unit,when will the radio altitude indication become amber?

167.What happens if Radio Altimeter 1 fails ?

166.In normal opearation ,how is the height data provided ?

165.When the radar systemswitch is in OFF position ?

164.Does an amber warning mean the loss of radar image ?

163.Can a radar image be displayed in PLAN mode ?

162.In which mode is the manual gain adjustment recommended ?

161.The Predictive Windshear discrete output is used to:

160.When is the Windshear function automatically activated?