AN unfortunate occurrence at the Diesel& Electric Preservation Group (DEPG) Williton, West Somerset Railway, resulted in the temporary withdrawal of both‘Hymeks’Nos. D7017 and D7018 for safety reasons.
On Friday, August 4, preparations were underway for a static test of No. D7018 following adjustments and checks made to the transmission. The engine was started and while the preparations for the actual test were in progress, the loco began to move forwards, uncommanded. This was against the parking brakes and riding over wheel chocks.