What was found
DURING OP 16 MAINT CHECK, FOUND WING TO FUSELAGE PANEL HAD WORN DEEPLY INTO THE SKIN ON LEFT SIDE, STA 813, LONGERON 26L. ACCOMP NDT INSP AND FOUND TOP SKIN EQUALS 0.022 MATERIAL LOSS AND BOTTOM SKIN 0.030 MATERIAL LOSS. REPAIRED, INSTALLED DOUBLER PER SRM 53-04, FIG 53.