As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN AFT WET AREA STA.947 RBL50 INTERCOSTAL CORRODED (DOT Z240)<[01] REMOVED AND REPLACED INTERCOSTAL AT MAIN CABIN AFT WET AREA STA. 947 RBL 50 PER BAC DWG 147A5650 AND B737-NG SRM 51-40-02.;[02] REMOVED AND REPLACED INTERCOSTAL AT MAIN CABIN AFT WET AREA STA. 947 RBL 50 PER BAC DWG 147A5650 AND B737-NG SRM 51-40-02.