737ng Fuel/spar Valves...

[spudgunjon]

Many thanks for the contribution, very much appreciated. Can I just clarify then that both of the given answers as above are, as assumed, technically incorrect?

*And whilst I have no interest in turning the flight deck into a comedy club, I'd just like to state that in my very limited "career" thus far the flying part has been (in relative terms) the easy bit and knowing systems inside out like this has been the thing that has challenged me most. In essence what I am trying to say is that, whereas I have no desire to be a bundle of laughs to fly with, I would suggest that the more I know about this sort of thing the more spare capacity I have to talk about boobs, football and slagging off the company.

Plus I don’t wish to be RHS forever twiddling the MCP!