How about delaminations between the wing/stab skins and the under
lying structure? The skin on these things is epoxied onto the ribs and
spars. What happens if you have to fix it? Gimmie rivets, anytime.

How frequent are glue bond failures? I know several Grumman owners and none
has ever had a problem.

Why are rivets such an advantage? They fail too, and replacing them in an
inaccessable area isn't any easier than replacing a bonded structure.

Both bonded and riveted structures can have their problems.

However, while most mechanics are well-versed in repair of riveted
structures, many shy away when you start talking about "bonded
structures". Truth of the matter is, at least on the Grummans, repair
of delamination IS by riveting, a repair that any competent sheet metal
man who takes the time to read and follow the published instructions
should be able to carry out.

Heck, even *I* was able to do it...