Comment: Re:Agreed...mostly... (Score 3, Interesting) 149
As someone else posted, an engine cut-off just before launch happened several times during the Shuttle program. There was even a case where a main engine shut down during flight, forcing an abort to orbit (ATO) - do a Youtube search for the launch of Challenger mission STS-51F.
One of my favourite space-related quotes came from STS-41D (Discovery), which had a main engine cut off at T-6s. Apparently the situation was rather...tense, with a fire starting after the engines shut down. One of the crewmen broke the tension: "Gee, I thought we'd be a lot higher at MECO!" (Main Engine Cut-Off).