Tornado was de-registered from the Rolling Stock Library at midnight on Friday 10th June. There were no reasons for this in terms of paperwork or mechanical condition of our locomotive. Investigations have shown that this was caused by a computer error associated with recent new software introduced by the RSL. As a consequence, the locomotive was unable to haul a train for UK Railtours on Saturday 11th June nor return to London in time for Saturday’s ‘Belmond British Pullman’. We are pursuing this with the RSL to ensure it doesn't happen again to ourselves and hopefully anyone else. We are also addressing the financial impact this has had on the Trust with relevant parties. When resources allow, Tornado will return to London and resume her calendar of operations.