Is there any way I can identify if I have the new design center rib versus the old one? Where can you get the center rib? How big a job is to replace it?
> Eliacim: > > The AD has not been superseded or rescinded. There is no terminating > action. > > Yes, cracking is found fairly regularly. There is a newer design center > rib > that helps prevent future damage. > > John Cooper > Skyport Services > 4996 Delaware Tnpk > Rensselaerville, NY 12147 > 518 797-3064 > www.skyportservices.net > > > >
