As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR STRUCTURE BETWEEN STA 380 AND STA 400 LBL 13; INTERCOSTAL UPPER SUPPORT ANGLE CRACKED AT FASTENERS HOLES.<[01] REMOVED AND REPLACED INTERCOSTAL UPPER SUPPORT ANGLE AT MAIN CABIN FLOOR STRUCTURE BETWEEN STA 380 AND STA 400 LBL13 PER B737-700 SRM 51-40-02-0G-0 AND DRWG #143A5400 SH 38.;[02] VERIFIED RII STEPS.