It?s interesting that the rib fillets on the tank with less sealant on the T-407 look to be more substantial than the one with the sealant all over the T-407. I wouldn?t be too concerned with the lack of sealant on the backside of the T-407, if the access cover is installed properly the only ?weak link? is the cover screws.
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Jeff Radtke
Lutz, FL
RV-7A - SOLD
RV-7A - New Build
Tail Feathers - Complete
ER Wings - Complete
Fuselage - Complete
Finish - Started
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