I tested the left wing fuel tank for leaks. I secured the refueling caps, capped the main fuel supply fitting and clamped a balloon onto the fuel vent fitting. I then replaced the fuel drain with an air inflation fitting. All of these were sealed with Fuel Lube, and the balloon was secured with a hose clamp. I used a bicycle pump to inflate the tank and balloon, and left overnight to see if the tank was air tight. I finished up adding BNC connectors to the NAV antenna cable to the right wing, and the marker antenna to the left wing. These connectors are where the antenna wires leave the fuselage and connect to the wing wiring. I began looking through the Angle of Attack system and planned it's installation.
