"Flirt" RABe 526 # 051 "Zimmerberg" of the Südostbahn is running as S 31 service to Arth Goldau between Altmatt and Rothenthurm.
"Flirt" RABe 526 # 051 of the Südostbahn (SOB) is running the S40 service 16930 from Rapperswil to Einsiedeln on the 5.0 % grade above Samstagern.
"Flirt" RABe 526 051 articulated lowfloor trainset of the Südostbahn as S31 from Biberbrugg to Arth Goldau.