As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, A CRACK WAS FOUND ON THE LH LONGITUDINAL BEAM AT FR49 ON THE CENTER FUSELAGE II FLOOR STRUCTURE THE CRACK WAS EVALUATED AGAINST SRM AND FOUND TO BE OUT OF THE SRM SCOPE. REPAIRED IAW EC E19-322-01. REPAIR IS CLASSIFIED AS MAJOR.