Dimple firewall flange to take side skin and hinge?
Can someone verify for me that I should dimple the holes in the firewall side flanges to accept the dimpled skin and to mate to the F1413B-L shim and FF-00006B-L cowling hinge that go inboard of the firewall flange? I think it must be true, but can't find it written anywhere.....
I fabricated the hinge and shim before this step, so all is lined up as it should be. I just don't think it would be the right thing to create the firewall flange dimple when doing the actual riveting......
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Ser 104142, RV-14A flying - N1463 
Ser 83825, RV-8 building - N8638? 
USN Ret, Urologist, AME, Repeat Offender
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