October 11, 2023 was a day of very long delays on the Bernina line. This was caused by a complete line interruption between Cinuos-chel-Brail and S-canf as well as a locomotive defect on two ABe 4/4 railcars the day before. The regional train 1633 from St.Moritz to Tirano is about 30 minutes late on its way between Alp Grüm and Stablini, hauled by the two ABe 4/4 (Tw III) # 51 and # 52. The line runs with 7.0 % gradient in loops on the valley slope with longer sections in galleries. The train is about to enter the Stablini tunnel. The railcars were actually assigned to traction of the BERNINA EXPRESS PE 973, which later came hauled by an "Allegra" ABe 8/12, also massively delayed.
