An aircraft stringer clip and related methods are disclosed that provide an apparatus for attaching aircraft elements to an aircraft stringer. In one embodiment, the stringer clip is a three-piece clamp assembly spanning the width of an aircraft stringer and including a single bottom member and two opposing top members that are configured to be engagingly coupled. The top and bottom members of the stringer clip are preferably made of rigid, but light-weight and flame retardant material.