Today while working on the post creak bake realignment of HSTS PR2, we noticed a magnet was missing from the upper right position on the Intermediate mass. As far as we know, this magnet was not bumped, snagged by a wire, or was hit by a tool. The dumbbell is still firmly attached to the mass. There is no magnet material left glued on the dumbbell, suggesting the glue joint failed as opposed to the magnet being broken off. A replacement magnet will need to be installed on this mass.