fishy have a look at the tautog infobox it's showing struck rather than stricken won't accept a change to that without wiping out the section entirely nor will it accept an add as built without putting it in a weird place it appears that it's using a different infobox template than the other related submarine articles that uses struck instead of stricken and doesn't have an as built field the infobox probably needs to be switched from the infobox ship to ship table header as in the uss thresher ss article