As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BS 640 TO 660, RBL 20 INTERCOSTAL CORRODED. FABRICATED IAW DWG 143N5367 SHT 3 REV A. PART MARKED IAW GMM 7-0-1001 REV 107. CORRODED INTERCOSTAL WEB REMOVED AND REPLACED IAW SRM 51-40-02 REV 97. THIS REPAIR IS CLASSIFIED AS MINOR IAW GMM 6-2-100 CRITERIA.