wrote:

I did find these interesting threads over on the piperowners.org
forum, which seems to suggest that the older straight-wing Cherokee
service manual did not have the prohibition against patching control
surfaces.

It might be the difference between an old manual and a current one. I have
an ancient copy of the PA28 service manual and it doesn't prohibit control
surface skin repairs. When a crack jumped the stop-drill hole on my rudder,
my IA declined to repair it (had to reskin). We compared service manuals and
my old one didn't have the prohibition, but his current one did. Word on a
Piper forum was that the prohibition was added to the PA28 manuals by Piper
in the 90s (which would explain why my old skin was stop drilled).

John Galban=====N4BQ (PA28-180)

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