40150 (unofficially, and very amateurishly named Crewe) approaches Hooton on 28 June 1984 with the 6F18 14:50 Amlwch to Ellesmere Port chemical train. The first four tanks contain ethylene dibromide, which was used in the manufacture of anti-knock compound for petrol. The two white tanks are chlorine empties. At the front and rear of the train are the obligatory barrier vehicles and brake vans, which indicate the noxious nature of the load.