Trim wing stringers and ribs 9 for clearance

Some interference occurs between the top and bottom wing stringers and ribs 9. Some trimming of both stringers and ribs was required. The resulting edges were sanded, scotch-brited and touched up with primer. To help with precision, some jigs were constructed to mimic the relevant areas of top skins 5 and bottom skins 2. A clearance of about 1mm was aimed for.