The M62 108 between Püspökhatvan and Galgagyörk

The track is strongest till Nógrádkövesd, Sergeis may go till that station. Above that they can only run with special permissions, but it’s not unheared of: an M61 Nohab in use by the track mainteance company went to the Balassagyarmat depot to take to unused Bzmot railcars to their base to have one of them converted to a track inspection and measurement railcar to replace the tiny Amsler unit destroyed in a crash with a V43-pulled freight train at Ceglédbercel-Cserõ.