Insert the W-1015-L Wing Tip into the wing assembly. Match-Drill #40 and cleco the wing tip attach holes using the W-1001 Leading Edge Skin, W-1003 Top Outboard Wing Skin and the W-1005-L Bottom Outboard Wing Skin as drill guides. Start drilling the forward most holes, then progress towards the trailing edge alternating between the top and bottom holes. Remove the W-1015-L Wing Tip.