The aircraft safety is one of the most important things when thinking of designing and manufacturing the airplane. During the flight, there is a probability of lightning occurrence which may cause catastrophic consequences. In order to avoid potential aircraft damage, the aircraft must be protected against lightning effects. Metallic components should be bonded to the airframe, while the airplane design must secure that possible lightning strike would not endanger the plane, the crew and the passengers. In this paper, the compliance of "Sova" aircraft design with certification requirements regarding lightning protection will be analyzed and shown.