As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURNG C-CHECK AT AMS, FOUND STATION 400 BULKHEAD UPPER CHORD LBL 40 WL 200 CORRODED (MAIN DECK LEVEL). CORROSION REMOVED BY TRIMMING THE FLOOR ANGLE. REPAIRED BY SPLICING IN REINFORCEMENT STRAPS AND ANGLES IAW KLM REPAIR 747-2000-019 AND BOEING ENGINEERING. (M)