As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJO - DURING Q-CHECK, FOUND THE BS 178 BULKHEAD AT WL 196 FROM LBL 25 TO RBL 25 WITH CRACK. L = 1.00 INCH. W = 0.001 INCH. REPLACED THE BS 178 BULKHEAD INTERCOSTAL AT WL 196 FROM LBL 25 TO RBL 25 IAW BOEING SB 737-53A1173 REV 3 DATED MAY 6, 1999, SECTION III PART VIII PARA B FIG 46. (X)