All, I also had the glued down wing walk compound and I removed it during restoration, I used a heat gun to soften it to pull it off and found about 8-10 rivet heads stuck to the sheet of non-skid after it was off. Under the skin in the wing walk area, there is a sheet of corrugated aluminum riveted to the ribs on either side of the wingwalk and to the top skin with flush rivets that acts as the reinforcement for the walkway. I had to open up the bottom of the wings center section to remove the corrugated sheet and clean up the corrosion that had caused the rivets to corrode away. Interestingly, most all of the corrosion that I found on my coupe has been around rivets with the rivets being the item that rotted away.
Richard Blair N99997 & N23287 Kingsland, Ga
