What was found
YVR - MAJOR REPAIR - DURING C-14 CHECK A CRACK WAS FOUND ON THE RT WING T/E, AT THE INBOARD SIDE OF THE AILERON HINGE SUPPORT RIB, WS 340. MAINTENANCE REMOVED THE CRACKED SUPPORT RIB AT WS 340, FABRICATED A NEW RIB, AND INSTALLED REPAIR IAW DWG 65-46460-47, AND B737-300 SRM 51-10-2, PG. 12.