LIGHTNING STRIKE Aircraft are required to remain at least 20 miles from thunderstorms, to protect them against hail and turbulence and also from lightning. However, first two components of a thunderstorm cause more damage to an aircraft than a lightning does. Lightning can have different effects on an airplane, ranging from "no" effect, to severe damages, and even extreme cases – an explosion of fuel tanks.A lightning strike normally does not damage the airplane, although it may leave a burn mark. The lightning energy travels through the metal skin of the aircraft and sometimes into other areas of the aircraft. In a few cases the energy has damaged electronic and navigation equipment in the aircraft, but only a few aircraft have had major problems. In this case a pilot needs radar assistance, vectoring because he might be unsure of his position. Sometimes the communication might be lost either. #weather