Barton-upon-Humber, Cleethorpes to Sheffield via Retford, and Peterborough to Grimsby via Boston, Willoughby and Louth. The units were rarely seen outside of their normal working area, but in June 1957 E50029/E56029 worked a special excursion from Ipswich to Chessington South. Later in their life, they were moved to the Tyseley TMD (TS) West Midlands, but still came back to the Lincolnshire area on a regular basis. Accidents and incidents On 25 January 1963, a set working the Grantham - Lincoln Central service collided with the rear (tender) of a stationary Class B1 steam locomotive near Bracebridge Gas Sidings Signalbox near Lincoln. Two people were killed and three injured. On 12 February 1968, the 06:48 Sheffield - Cleethorpes was hit in the rear by a coal train ran. The Class 114 had a parcel van as a tail load which took the force of the impact, but the rear cab was still severely crushed. On 28 November 1969, 50031 + 56031 ran through level crossing gates at Great Coates level crossing near Grimsby, striking a Dodge articulated lorry and carrying it 46 feet into the station. 3 people needed hospital treatment. The driver had run a red signal. On 28 January 1970, 56020 & 50020, travelling at 50mph, struck a tanker traversing Dowdyke Bank level crossing between Spalding & Boston. On 9 December 1983, 53049 + 54049 working the 17:32 Cleethorpes - Sheffield collided with the 15:02 Drax - Lindsey (900-tons of empty oil tanks hauled by 47299) at Wrawby junction, a convergence of lines just outside Barnetby, Lincolnshire. One passenger was killed. On the 26th July 1986, 53016 + 54034, coupled to Class 105 54434 + 51278, collided with a van that had driven onto Lockington Level Crossing against flashing lights. 54434 derailed and ran down the embankment, turning 180 degrees before coming to rest on its side. All vehicles were badly damaged. Nine people were killed. Prototype unit In addition to the 49 production units, a fiftieth two-car unit (cars 50000 and 56000) was built to test the Rolls-Royce engine type and hydraulic transmission later used on the Class 127 units. Initially the unit underwent trials on the Cockermouth, Keswick and Penrith railway in early 1957, but was subsequently also allocated to Lincoln and worked the same diagrams as the other 49. The unit was withdrawn in October 1967 as it was deemed to be non-standard, thus never received