TRANSCRIPT

Niomi: Looking at the instrument history, the outlet temperatures started to diverge about four months ago. Operations didn't notice until they got a high temperature alarm.
Niomi: You're right. Temperatures didn't drift until the flow control valve reached the full open position. This problem has been building for almost a year.
Niomi: Well, yeah. It just shows if your attention is focused on other things, it's still possible to be hit by a slow moving train.