As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE CHECK CORROSION WAS FOUND OUT OF LIMITS ON THE UPPER SURFACE OF THE FLOOR SUPPORT LOCATED AT STA 1136 LBL 14 STR 17. REMOVED CORROSION IAW SRM 511006. FABRICATED NEW SUPPORT PER SAMPLE FROM BAC 15064417. TREATED AND PRIMED IAW SRM 511002 AND MM 512002. INSTALLED IAW SRM 513002.