What was found
DURING C-CHECK AT AMES (TPA), DURING STRUCTURAL INSPECTION OF THE RIGHT-WING TOP SKIN PANEL NO.1 UPPER SURFACE, CORROSION WAS FOUND AT WS 350 UNDER WING FIXED TRAILING EDGE PANEL 113T1609-2. CORROSION WAS REMOVED BY BLENDING AND FOUND TO BE OUT OF LIMITS PER SRM 57-20-01. NOMINAL THICKNESS IN THE AREA IS 0.305 -0.320, LOWEST MRT IN THE AREA IS 0.227 MATERIAL LOSS OF 29%. SRM ALLOWABLE IS 14% THICKNESS LOSS. UPPER SKIN PANEL NR 1 SKIN OVERHANG IS CONSIDERED FCS PER 767-FCBS-57-021 IN SRM 51-00-04, GENERAL, TABLE 4. DAMAGE REPAIRED IAW ABX-REA-5725-66198-00 AND FVCI EO 26099-12 REV IR