As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CPCP INSPECTION FOUND LEVEL 2 CORROSION, FS 2320 AT FLOORBOARD SUPPORT HAS SEVERAL AREAS OF CORROSION. REMOVED CORROSION IAW B747 SRM 51-10-01. FOUND TO BE OUT OF LIMITS IAW B747 SRM 53-10-01. INSTALLED REPAIR PARTS IAW B747 SRM 51-40-04. CORROSION TASK CARD NUMBER C53-210-01 PART 4 OF 8. NON-ROUTINE TASK CARD NUMBER 12801.