试题详情

(B737ng)ENG VALVE CLOSED 灯熄灭，意味着____________

(B737ng)ENG VALVE CLOSED 指哪个活门？

飞行前准备时，发动机活门关闭（ENG VALVE CLOSED）和翼梁活门关闭（SPAR VALVE CLOSED）灯在什么状态？