As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: CHAFING DAMAGE WAS FOUND ON STRINGER 40 RIGHT AFT OF FRAME 47 DURING THE ACCOMPLISHMENT OF THE C11 CHECK IN APRIL OF 2017 WHICH WAS REPAIRED BY BLENDING PER EA 268709 WHICH WAS CLASSIFIED AS A MINOR REPAIR. DURING THE CURRENT 3S CHECK THE STRINGER WAS PERMANENTLY REPAIRED PER EA 268820A WHICH WAS CLASSIFIED AS A MAJOR REPAIR.