As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
KEEL BEAM INTERCOSTAL BETWEEN STA 860 AND STA 900 HAS INTERGRANULAR CORROSION AT LBL 7.0". CORROSION FOUND EXCEEDED SRM LIMITS. INTERCOSTAL WEB BETWEEN STA 680 AMD STA 900 AT LBL 7 REMOVED AND REPLACED IAW SRM 51-40-02 REV. 97. REPAIR IS CLASSIFIED AS MINOR IAW GMM 6-2-100 CRITERIA.