I just had part 1 of the strut AD done. Well, almost. One of the forward struts does not have the drain hole in it at the bottom of the strut. It does not appear that it was just painted over. Does that mean it is a sealed strut? How can I tell if a strut is a sealed strut? Also how can I comply with the AD if in fact that strut is NOT a sealed strut but just does not have the hole in it?