The FV-6 Forward Facing Vent, or “scoop” is screwed to the main chassis with (2) #2-56x3/32 socket head cap screws. This “scoop” is usually installed if there is excessive fuel exiting the main fuel tank vent line. This residual fuel on the fuselage is often caused by aggressive flying including inverted pushing maneuvers. Sometimes, the fuselage boundary layer near the external vent can also cause fuel to exit the Flush Fuel Vent. The FV-6 Scoop/Vent may help eliminate this problem. However, the FV-6 Scoop/Vent will make the attachment to the Overflow Tank difficult.