Well, I might be wrong, but I believe that you will only find out that your tailskid is not working as it should during the walk around.
I know that the SFPs has something called SPSEU (Supplementary PSEU, or something close to that) which monitors the 2 position tailskid.
I'm guessing this one, but I think that a tailskid malfunction on this type would cause the PSEU light to come on as well.
