As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STA 669 RBL 24 2 CRACKS ON LONGITUDINAL FLOORBEAM UPPER CHORD REPAIRED BY CHORD REPLACEMENT ON W/O 1894410. PREVENTIVE MOD INSTALLED PER SB 737-57A1296 REV 2 FIG 3 REFER TO NDT19-1057 - CRACKS CONFIRMED. REFER TO NDT19-3152 - NO CRACKS IN OPEN HOLES. SB 737-STA1296 DATED 1 APRIL 2015 REV 2.