That would be anedotal?
Hey, another difference between engineers and mechanics--when the kannuder valve does fall off the engineers run around with calculators and retape their nerd glasses while we mechanics get all happy cause we got something to fix. Why yesterday the engineers brought me a new kannuder valve to install in the XX prototype cause the installed design was not working. The new improved version was about twice as complicated. While investigating the problem I discovered the springs had not been specified as having the ends milled to be square to the spring axis. I blocked them on the mill and made them square, I then "properly" assembled the kannuder valve for the first time and reinstalled the old kannuder into the protoype. Now it works, many calculators were pulled out and even some resorted to slide rules. They even borrowed all my tape for their glasses. While high level meetings are currently being held at corporate level, the old, simple, properly assembled kannuder outperforms the new, fancy, complicated kannudertoovalve.
Engineers, what would the mechanic do without them?
Now that would all be rhetorical? J