What was found
CORROSION ON FWD PRESSURE SILL, WINGBOX, LT SIDE, IN STA FS= 748 TO FS= 750 BETWEEN 36LBL TO 42LBL AT PAX CABIN. LEVEL CORROSION 1. CORROSION WAS REMOVED PER SRM 51-21-06-001-001-A01 AND FLAPPEEN WAS PERFORMED ON REPAIRED AREA PER SRM 51-24-11-001-001-A01 IN REFERENCE TO REO 690-53-41-171 REV-, STEP 3.