Dropped wrenc while tightening The main fuel line to the fuel tank. Spent some time hunting through the lower part of teh fuselage. Decided to remove the center baggage tunnel cover. One VERY stubborn and inaccessable screw took over an hour to remove. The wrench wasn't there. Found teh missing wernch in the outboard part of teh lower r.h. floor hiding behind a lightening hole. Discovered 3 rivert that were improperly installed, replaced.
Installed fuel line supports.
Cleaned up some wireing possible scuffing in the lower fuselage.
Decided to do fuel line leak test to make sure all is tight. SAME LEAK STILL THERE.
