Factual error: In this episode Blackwall Station is shown as a London Underground tube station. Blackwall Station is a Docklands Light Rail (DLR) station. Also look at the destination sign on the front of the train, which reads 'THAMES LINE', No such line/station exists on the London Underground.
Factual error: In this episode Nick rides the pump. However, being Station Officer, he should be riding the pump ladder. The London Fire Brigade always has the Station Officer in charge of the pump ladder and not the pump (it's the Sub Officer who is in charge of it).