What was found
MAIN CABIN RT FRAME STA 277 THRU 332.1 - FLOOR BOARD SUPPORT STRUCTURE COMMON TO R1 SERVICE DOOR SILL AREA, UPPER SURFACE HAS BARE METAL AREAS AND AREAS OF CORROSION. GROUNDED - YES. BLENDED INNER CHORD AT R-1 DOOR, ORIGINAL MATERIAL .080 MATERIAL REMOVED .012 REMAINING MATERIAL .068 FOUND TO BE OUT OF LIMITS IAW SRM 53-10-15-01-2 MATERIAL ID AND SRM 53-1-15-1A-2 FOR ALLOWABLE DAMAGE, REMOVE DAMAGED INNER CHORD AND ATTACH ANGLES AND DOOR SILL IAW SRM 51-40-02, INSTALLED NEW INNER CHORD, DOOR SILL AND ATTACH ANGLES IAW DRAWING 141A831 REV B AND SRM 51-40-2-G-0.