OTTB.
The latest instruction for assembling FRS fuel couplings (dated Nov 2008) includes a NOTE, which simply says "The pipe angular displacement is not to exceed 1 degree in any direction". There is nothing to say how this is to be achieved or measured.
Previous instructions made no mention of alignment requirements. In fact prior to Dec 2007 there was no technical iinformation regarding FRS fuel pipe couplings within the a/c Topic 1 publications.
DV