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 IN MAIN CABIN BS 1090 BL 0.0 UPPER FLOORBEAM T-CAP. TRIMMED OUT DAMAGED SECTION ON FWD UPPER FLANGE FROM LBL 1 TO RBL 1 IAW B727 SRM 53-10-08. FABRICATED 2 ANGLE DOUBLERS FROM BAC 14902685 AND BAC 14902831 AND 1 FILLER FROM 0.090 707 T6. TREATED AND PRIMED PARTS IAW B727 SRM 51-10-02 AND MM 51-20-02. INSTALLED REPAIR IAW B727 SRM 53-10-08.