My question may sound funny: In 2017 (before i entered the group of owners) our tanks were re-sealed. According to the bill RH AND LH. In summer 2019 I noticed fuel smell in cabin and in winter, I removed the interior panel and found blue AVGAS in the lower edge of the first wing rib. (LH) Also, in summer 2019 I have seen blue "tracks" on one of the tank access panels on the upper side  of the wing (also LH) but only when the tank was filled to the max. It seems, I was the fi