What was found
CRACK RIB 8 ON ACCESS PANEL 321A AT VERTICAL STABILIZER 2023-431281<[01] TOOL USED: TEMPERATURE CONTROLLER: P/N P3015GOES00000; S/N 142811020; DUE DATE: 25-JAN-24.;[02] REPLACED RIB 8 LOCATED ON ACCESS PANEL 321A AT VERTICAL STABILIZER I.A.W B737-700 SRM 51-10-02 AND DWG 174A0103 REV -.<BR>SEE INDIVIDUAL SINGOFFS BELOW;[03] CORRECTED STEP 2: REPLACED RIB 8 LOCATED ON ACCESS PANEL 321A AT VERTICAL STABILIZER I.A.W B737-700 SRM 51-10-02 AND DWG 174A0103 REV -.<BR>SEE INDIVIDUAL SIGNOFFS BELOW;[04] CORRECTIVE ACTION STEP 3 CERTIFIED