Folks, I was preparing to add fuel to my right wing 13 gallon tank. I used a flashlight to look into the tank and saw something that concerned me. I reached in with two fingers and pulled it out. I ended up pulling out several piece of what appears to be an old attempt to stop a leak from inside the tank at the neck of the tank. You can see the pattern of the fiberglass on some of the pieces.
I'm thinking this was a "fix" that came loose after reacting poorly with the 93 octane gasoline when I filled it up to the neck during my first flight.
I have not noticed any leaking fuel before this occurrence though the top of the wing shows some possible indications, but I'm too much of a novice to interpret what I'm seeing.
My plan is to drain the tank. Scope it thoroughly for any residue and replace all fuel filters.
Any thoughts or suggestions? Any questions come to mind?
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Thank you!