1961

These units, initially registered Bt4ü 215 - 216, are delivered between 1961/62* together with the following units: BLS unit Bt4ü 211, SEZ unit Bt4ü 212 and GBS units Bt4ü 213 - 214.

*according to other sources 1963
 

Sources: https://www.drehscheibe-online.de/foren/read.php?017,8429173, https://forum.spur-n-schweiz.ch/index.php?thread/9103-bls-ew-i-bt/

1969

Units Bt4ü 215 - 216 receive new registration Bt 20-33 990 - 991.  

Sources: https://www.drehscheibe-online.de/foren/read.php?017,8429173

1993

Unit Bt 990 is completely destroyed in an accident in Därstetten in 1993.  

Sources: https://forum.spur-n-schweiz.ch/index.php?thread/9103-bls-ew-i-bt/

1997

After the merger with the BLS in 1997, this unit is incorporated in the new company.  

Sources: https://www.drehscheibe-online.de/foren/read.php?017,8429173

2001

Between 2001 and 2003, unit Bt 991 is converted to BDt 82-33.  

Sources: https://de.wikipedia.org/wiki/BLS-Farben

Do you have additional informations regarding this vehicle?

Help us writing the history of Bt 990 - 991! Your knowledge is precious for us and the entire community, do not hesitate to share your facts, photos or videos:

Latest update on the 23rd of October 2022 at 13:22

Contributor(s): Tudor C.

Discussion forum