The left wing root fairing was drilled to the wing by using a #40 hole finder and then upsizing the holes to #30. The rubber trim was also placed on the fairing to check the fitting. A few areas on the fairing needed to be trimmed to allow the rubber trim to lay properly against the fuselage. The rubber trim was also placed on the right wing root fairing.
The left wing root fairing drilled to the wing
The left wing root fairing with the rubber trim in place