The amber standby hydraulic system LOW PRESSURE light is armed:
发布于 2021-02-03 04:40:16
【单选题】 A A.At all times. B B.Only when either FLT CONTROL switch is moved to STBY RUD. C C.Only when the ALTERNATE FLAPS switch is moved to ARM. D D.Only when standby pump operation has been selected or automatic standby function is activated.