As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STA 1681, LBL 39.50 INCH FLOORBEAM UPPER CHORD BOTTOM CORRODED. CORROSION ON FLOORBEAM FOUND EXCEEDED SRM ALLOWABLE LIMITS. REPAIR CARRIED OUT IAW EA F-5310-126226, CORROSION ON FLOORBEAM 1681.80 AT MULTIPLE LOCATIONS - REPAIR. REPAIR IS CLASSIFIED AS MAJOR IAW GMM 6-2-100 CRITERIA.