Record Cards from 37031 whilst based Tinsley TMD (TI).
These records date from March 1989  - Last Classified Attention Was 17th March 1989.
37031 ( D6731) Was Withdrawn From Service By EWS in January 1994 from the  ???? pool ( - ) (SF) 37031 was scrapped on site at Cardiff Canton TMD (CF)
by MRJ Phillips in May 1997.

More information can be found here Wikipedia - BR Class 37  -  Class 37 Locomotive Group - Preserved-Diesels Website