by MichaelFarley56 » Wed Jun 01, 2016 9:57 pm
My plans are old enough that I don't have this access panel indicated on mine. Is it a 5" round cover plate on the bottom tailcone skin that's ultimately right in front of the ventral fairing?
If so, I believe that was part of the Waiex tail Service Bulletin. The purpose of that inspection panel is to allow people to reach the bottom on the AN-4 bolts that pass through the 7/8" tail blocks, angle pieces, and ultimately the upper longerons (the bolts that hold the forward tail spars to the longerons). If you can access those bolts prior to riveting on the bottom skin, then my two cents are that this inspection panel will be optional. I can tell you from my personal experience that you can visually inspect these bolts and stop nuts by looking in the aft fuselage mixer access panel, but you have basically no chance of actually reaching them.
Is this the panel you're talking about?
Mike Farley
Waiex #0056 - N569KM (sold)
Onex #245