1. The windshield heaters are on as soon as there is power on :
2. Touchdown protection prevents brake application until :. pass after touchdown :
3. Should the Electronic and Hydraulic Systems fail , the landing gear can still be lowered using the alternate gear extension lever :
4. To indicate that the landing gear is in the down position , the EICAS landing gear icons will show three :
5. What is the purpose of the Proximity Sensor Electronic Modules ?
