What was found
IN PASSENGER COMPARTMENT UNDER FLOORBOARDS, THE LT PRESSURE FLOOR SILL FROM FS 424.00 TO FS 535.00 BETWEEN LBL 36.00 TO LBL 45.00. THE FLOOR SKIN AND FINGER WEB'S AT SEVERAL LOCATIONS HAVE PITTING CORROSION. BLENDED OUT SEVERAL AREAS OF CORROSION ON THE LT FLOOR SILL PANEL AREA, APPROXIMATELY .005" TO .010" OF DAMAGE REMOVED APPROXIMATELY .045" TO .050" OF MATERIAL REMAINING, BLENDED IAW REO 601R-53-41-666, REV C, STEPS 1.2, A-B. BLENDED SEVERAL AREAS OF CORROSION ON THE LT FLOOR SILL ANGLE, APRROXIMATELY .005" TO .020" OF DAMAGE REMOVED. APPROXIMATELY .060" TO .075" OF MATERIAL REMAINING. BLENDED IAW REO 601R-53-41-666, REV C, STEPS 2.2, A-B. C/W ECTC REO 601R-53-41-666, REV C.