[cladari]

Anecdote - After TMI the NRC mandated that all nuclear plants install a system to automatically initiate auxiliary feed water to the steam generators if certain criteria were met. The Combustion Engineering version of this was called Aux Feed Actuation System or AFAS. During the next refueling outage it was being installed and I was giving lectures on it's design and operation (I had moved from operations to training by then) and the very first question from the very first operator training session was "How do you turn it off". My answer was "you can't". They were not happy.