What was found
WHILE IN HEAVY MX PERFORMING INSP IT WAS NOTED THAT BS 1050-1130 STR 27R HAS CORROSION. REMOVED DAMAGED AREA, FABRICATED NEW STR FROM BAC1498-146 7075 T62 DIM 24.625", 21", 19.750", 14.750", 14.375", 14.375", 14.375". INSTALLED REPAIRS, NO OTHER DEFECT NOTED. ACFT WAS RETURNED TO SERVICE.