What was found
CRACK BRACKET KEEL BEAM LOCATED BS540 AT LEVEL LBL4 AT LOWER FUSELAGE 2024-61344<[01] MEASURE OF CRACK IS: L:1.034 TOOL USED DIGITAL CALIPER PN:500-197-30 SN:A21042057; DUE DATE: 04-APR-24 AND REPLACED BRACKET KEEL BEAM LOCATED BS540 AT LEVEL LBL4 AT LOWER FUSELAGE IAW B737-800 SRM 51-40-02-0G-0 AND DWG 212A1101 SHEET 7 REV-. TORQUE APPLIED TO CLAM: 80 IN-LB TOOL USED TORQUE WRENCH 40-200 IN-LB P/N: QD1200A S/N: 0821122953 DUE DATE: 04-OCT-24 IAW B737-800 AMM 20-50-11-910-801.;[02] CORRECTED STEP 1. MEASURE OF CRACK IS: L:1.034 TOOL USED DIGITAL CALIPER PN:500-197-30 SN:A21042057; DUE DATE: 04-APR-24 AND REPLACED BRACKET KEEL BEAM LOCATED BS540 AT LEVEL LBL4 AT LOWER FUSELAGE IAW B737-800 SRM 51-40-02-0G-0 AND DWG 212A1101 SHEET 7 REV-. TORQUE APPLIED TO CLAMP: 80 IN-LB TOOL USED TORQUE WRENCH 40-200 IN-LB P/N: QD1200A S/N: 0821122953 DUE DATE: 04-OCT-24 IAW B737-800 AMM 20-50-11-910-801.;[03] MEASURE OF CRACK IS: L:1.034 TOOL USED DIGITAL CALIPER PN:500-197-30 SN:A21042057; DUE DATE: 04-APR-24 AND REPLACED BRACKET KEEL BEAM LOCATED BS540 AT LEVEL LBL4 AT LOWER FUSELAGE IAW B737-800 SRM 51-40-02-0G-0 AND DWG 212A1101 SHEET 7 REV-. TORQUE APPLIED TO CLAMP: 80 IN-LB TOOL USED TORQUE WRENCH 40-200 IN-LB P/N: QD1200A S/N: 0821122953 DUE DATE: 04-OCT-24 IAW B737-800 AMM 20-50-11-910-801.