Incident Report: Observations by Zetterberg and Nils Gustav Nilsson, 1946

This document contains two accounts of unidentified aerial phenomena observed in Sweden in 1946. The first account, provided by a witness named Zetterberg, describes an event in early July 1946. Zetterberg observed a 'fire tail' (eldkvast) moving from the southeast to the northwest at an altitude of 6 to 7 meters. The object emitted a hissing sound and traveled at a speed faster than a conventional airplane. Zetterberg also describes a separate incident involving a light that moved like a 'lightning bolt' along power lines toward a substation, though he could not determine the distance due to limited visibility. The second account is provided by Nils Gustav Nilsson, a carpenter from Kung Karls socken. On September 14, 1946, at 16:30, Nilsson heard a sound resembling a revving motorcycle engine, which he initially mistook for a plane crash. Upon investigating the area near Rybacken, he observed smoke rising from the ground and discovered a glowing power line lying on the ground between two utility poles. The sound he heard lasted approximately 5 to 6 seconds. A technician, Eriksson, arrived at the scene shortly after Nilsson to address the power line damage.