As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE PERFORMING SB 737-53A1173 (INSPECTION OF THE VERTICAL BEAMS AT STATION 178 PRESSURE BULKHEAD) THE FOLLOWING DEFECTS WERE FOUND, VERTICAL BEAM WEB CRACKED AT BS178 RBL 5.7 WL 1832-VERTICAL BEAM WEB CRACKED AT BS 178 RBL 17.1 WL 230 BOTH CRACKS WERE REPAIRED AS PER BOEING 737 SRM.