As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJO - RIB CRACKED AT RIGHT WING FUEL TANK WBL 135.5, DEFECT SIZE LENGTH 1.125 INCH. REPAIRED RIGHT WING RIB LOWER CHORD AT WBL 135.5, BETWEEN STRINGER 2 AND STRINGER 3 PER BOEING SERVICE BULLETIN 737-57-1186 DATED 4-13-98, SECTION III, PART 3 FIG 3. (M)