As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MX PERFORMING INSP IT WAS NOTED THAT THE INTERCOSTAL LOCATED AT STR 28L BS. 700-720 HAS CORROSION AT BASE. REMOVED DAMAGED INTERCOSTAL, FABRICATED NEW FROM 7075 T6 .040 INCH DIM 8.5 INCH X 18.5 INCH AND INSTALLED. NO OTHER DEFECTS NOTED. ACFT WAS RETURNED TO SERVICE.