What was found
AFT CARGO LT Z CHANNEL AT STA 767+14' HAS CORROSION (234-10) REMOVED CORROSION AFT CARGO COMP LT Z CHANEL AT STA 767 +14' IAW B737 SRM51-10-02-0G-0. EVALUATION AREA :ORIGINAL MAT 0.040 .MAT LOSS 0.015.MAT REMAINING 0.025 .FOUND OUT LIMITS IAW B737 SRM 53-00-53-1A-2. A/D #2. DRILLED NEW SECTION OF AFT CARGO L/H Z-CHANNEL FROM STA 747 TO STA 847 IAW B 737-7 SRM=51-40-05-0G-0. TREATED AND PRIMED PER B737-700 AMM 51-21-41-370-803 AND AMM 51-21-72-370-802. INSTALLED NUT PLATES AT NEW SECTION OF AFT CARGO L/H Z-CHANNEL AS PER B737-700 SRM 51-40-02-0G-0. SPLICED TOGETHER TOW PARTS OF AFT CARGO L/H Z-CHANNEL AS PER B737-700 SRM 51-40-02-0G-0.