As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON REMOVAL OF LEFT HAND NUMBER 7 SLAT LOWER SKIN FOR REPAIR ACCESS, FOUND LEFT HAND NUMBER 7 SLAT INTERNAL RIB CRACK AT STATION XOS 978.461. CRACK RIB REMOVED AS PER SRM 51-31-01-OG AND FABRICATED RIB PER DOUGLAS DRAWING ARB1878 REVISION D. INSTALLED FABRICATED RIB AT LEFT HAND NUMBER 7 SLAT INTERNAL AT STATION XOS 978.461 AS PER SRM 51-35-01-OG. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.