As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJO - DURNG C-CHECK, WHILE INSPECTING THE LEFT WING TO BODY RIB CHORD AT BS 665, BBL 70.85, A CRACK WAS NOTED ON THE HORIZONTAL FLANGE. LENGTH 2 INCH. THAT CRACK ENDED IN A FASTENER HOLE. THIS DAMAGE IS ACCEPTABLE BUT REQUIRES REINSPECTION AT 1500 CYCLE INTERVALS. PERMANENT REPAIR REQUIRED WITHIN 2 YEARS PER S/B 737-57-10S7 REV 8. (M)