Boeing 787 KSV Practice Test 2026 – All-in-One Guide to Master Your Skills and Achieve Exam Success!

Single-lane slides are used where the door opening and slide path can only support one evacuation lane, while dual-lane slides are added where more capacity is needed. On the 787, the front doors and the doors positioned as the third station on each side are equipped with single-lane slides, meaning each of those exits provides one clear path to the ground or water. The doors in the middle (and rear) are set up with dual-lane slides to increase evacuation capacity and accommodate liferafts if needed. So the exits with single-lane slides are the front pair and the third pair on both sides.