What was found
((OF1R)) DURING AN INSP, PRIOR TO PURCHASE, THE LT FLAP NOSE RIB WAS FOUND CRACKED THROUGH THE L/E RELIEF CUTOUT, IN THE UPPER FLANGE BEND RADIUS, AND THROUGH THE ACTUATOR ATTACH BRACKET NUTPLATE RIVET HOLES. THIS IS A VERY DIFFICULT AREA TO ACCESS AND INSPECT. AN ADDITIONAL SWALL OPENING IN THE BOTTOM FLAP SKIN WOULD BE ADVISABLE FOR INSPECTING THIS AREA. SUSPECT THIS SITUATION IS CAUSED BY FLAPS BEING EXTENDED AT HIGHER THAN DESIGNED AIRSPEEDS OR INCORRECT UP STOP BUMPER RIGGING. RESEARCHED AND FOUND NO MFG SERVICE INFO ADDRESSING THIS FOR SUCH A COMMON FAILURE ITEM.