DB Schenker era. DB Schenker had one operational Class 37/4, 37401, at the time of its rebranding from EWS on 1 January 2009. DB Schenker also had hired locomotives for temporary duties, such as 37 423 from Direct Rail Services (DRS) to cover for failed 37417. DB Schenker 37401 (and DRS's 37 423) were on snowplough duty at Inverness for the winter months. 37401, DB Schenker's sole operational English Electric Type 3 at the time, was reported sounding rough and was later stored, although this did not last long, as it was soon sent to Toton TMD for repairs along with 37406 The Saltire Society. 37401, DB Schenker's most reliable Class 37, was repaired and returned to service. 37406 was returned to service, failing on its first working. 37670 was also returned operational. 37419 was prepared for a return to traffic and repainted into DB Schenker livery, however its long time in store did not help its power unit and it failed with a serious engine fault on its trial run. The locomotive is now operational with DRS. DB Schenker had the largest route for railhead treatment trains for Autumn 2009 and required Class 37 haulage due to their route availability. Much speculation was surrounding the return of several Class 37s, however DB Schenker was eventually given clearance from Network Rail to use Class 66s and 67s on the routes instead, resulting in the Class 37 plan being ditched despite several of the machines having their air horns moved onto the nose to resolve clearance problems. Reliability problems plagued 37670 during its short time in traffic and the loco was eventually stored unserviceable. With the storage of 37670, this meant that (once again) 37401 was the sole operational Class 37 in active service under DB Schenker. To take the strain off 37401, 37425 Pride of the Valleys was fitted with OTMR safety equipment and was returned fully operational. The locomotive retained in BR blue large logo livery, however (like 37670) it was also plagued with unreliability. As of summer 2010, DB Schenker Rail UK ceased using Class 37s. In June 2013, DB Schenker offered six Class 37s for sale: 37703, 37714, 37716, 37718, 37800 and 37884. These had been stored out of use at Dollands Moor after returning from mainland Europe, where they had been working on the construction of a new high speed line. 37703 went on hire/loaned (but