What was found
DURING MAINTENANCE VISIT, PERFORM PHASED ARRAY INSPECTION OF RT WING, FOUND EVIDENCE OF CORROSION AT RIBS 9-11. ALL CORROSION WAS REMOVED BY BLENDING WITH MINIMUM DEPTH REPORTED AS 2.87 MM AT L1, NORMAL THICKNESS IS 5.00 MM. ALL REPAIR PLATES WERE MANUFACTURED AND INSTALLED WITH OVERSIZE FASTENERS. REINSPECT AT 27700.