What was found
WHILE IN HEAVY MX PERFORMING INSP, CORROSION WAS NOTED BETWEEN STR 29L AND 30 AT THE AFT SHEAR TIE BS. 1166. CORROSION WAS FOUND TO BE OUT OF LIMITS. REMOVED SHEAR TIE AND FABRICATED NEW FROM 7075 T6 .063 INCH DIM 6 INCH X 2.25 INCH, FABRICATED DOUBLER FROM 7075 T6 .071 INCH DIM. 5 INCH X 4.5 INCH FABRICATED FILLER FROM 7075 T6 .063 INCH DIM 1.25 INCH X 4.25 INCH. INSTALLED REPAIR, NO OTHER DEFECTS WERE NOTED. ACFT WAS RETURNED TO SERVICE.