As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING INTERNAL BORESCOPE INSPECTION (SNRM #N00779), RIGHT HAND WING #5 SLAT INTERNAL RIB FOUND CRACK AT XOS 706.858. CRACK RIB REMOVED AS PER SRM 51-31-01-OG AND FABRICATED RIB PER DOUGLAS DRAWING ARB1775 RIVISION D. INSTALLED FABRICATED RIB AT RIGHT HAND WING #5 SLAT INTERNAL AT XOS 706.858 AS PER SRM 51-35-01-OG. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.