the final, , leg into Trondheim. This train was pulled by engine 182, an NSB Class 21a engine, at the front, and four carriages (a luggage car, a brake van, and two sitting carriages). The crew of no. 361 had boarded at Tynset and been given briefings to inform them of trains which the northbound trains would be meeting en route during the coming week. Among these was an extra train, scheduled for "night to Monday the 19th", which all the crew assumed meant Monday night, that is, the next night. Moving all the passengers over to the next train had delayed no. 361, and it was 20 minutes behind schedule when it pulled out of Støren, but with the improved track the driver hoped to make up the lost time. By the time the train reached Selsbak, where they were scheduled to meet southbound train no. 448, they were on schedule. As the train continued northwards the driver kept a lookout for signals on the left side, while the firemen was to look out for signals to the right. Marienborg Marienborg Station was little more than a short stretch of double track to allow trains to pass each other (the facilities for passenger service was not opened before 1999). The only building at the location was a guards' cabin where the man in charge was to set the points and signal the trains in and out. Usually, there were two men stationed at Marienborg for the scheduled meetings which could be quite hectic for a single person to handle on his own, but on this night, only one person, Peter Wiig, was manning Marienborg for the meeting of trains Litra D and no. 361. Wiig set the points to let no. 361 enter the passing loop, and set the signal there at danger, then set the points so that Litra D could pass through without trouble. Hoping to make the meeting as quick and clean as possible, and realizing that no. 361 might have trouble seeing all the signals and semaphores in the darkness, Wiig used his hand-held signal light to make sure that no. 361 would see an all-clear signal all the way into Marienborg, so that it would not stop prematurely outside the station and delay the meeting. Train no. 361 slowed as it entered Marienborg, but then to Wiig's horror, the train passed the stop signal,