What was found
DURING C2 CHECK INSPECTION WAS FOUND CORROSION ON MAIN FUEL TANK ACCESS DOORS 541LB AND 541GB PN: 112N6101-3. DAMAGED AREA WAS BLENDED TO A MINIMUM DOOR THICKNESS OF 0.120 INCHES (541LB) AND 0.106” INCHES (541GB). NDT (EDDY CURRENT) INSPECTION WAS PERFORMED AND NONE ADDITIONAL DAMAGES WERE FOUND AFTER BLENDING. BLENDED AREA WAS FLAP/ROTO PEENED AND ORIGINAL FINISHES WERE RESTORED. THOSE ACTIONS WERE PERFORMED IAW EWO 767 57-040 AND MFG SERVICE REQUEST 1-789704880. THIS REPAIR CONSTITUTES A MAJOR REPAIR. FAA FORM 8100-9 WAS ISSUED APPROVING THIS REPAIR.