Like many things in our lives the guarantee on a product is not good unless used as directed in the Manf specifications.
OK, history has told us that the manf. specifications were not clear enough or easy to comply. Thus the Manf. updated his info with a later SB.
I'm waiting for the AAIB to tell me if it was complied with, if not, why not?
about this. Resurrecting old history, pre-service Bulletin, is not appropriate to these questions.