This article covers a real-world subject which should not be taken as part of the Holby universe.
"Crash and Burn" is the 504th episode of Casualty and the 10th episode of the 20th series. As a result of only being a half-length episode, it was mistook as making up a whole episode with episode 9, which resulted in many errors in episode numbering. It was only in 2016 when Casualty aired its 1000th episode that this error came to light, and episode lists were amended.
