What was found
***CORROSION*** AFT CARGO COMPARTMENT LT SIDE ZEE CHANNEL CORRODED IN MULTIPLE SPOTS FROM STA 727E TO 747, WRITTEN ON N/R'S DEFECTS NUMBERS W141095, W141087, W141085, W141086, W141094, W141093, W141101, W141090, W141091, W141092, W141078, W141079, W141083, W141089, AND W141088, NEEDS TO BE REPLACED. DOT 82-122, LBL21 WL 155.5 REMOVED CORROSION ON L/H "Z" CHANNEL SUPPORT FROM STA 727E TO STA 747, FOUND EXFOLIETER CORROSION OUT OF LIMITS PER SRM 53-00-53-1A-2, FABRICATED NEW "Z" CHANNEL SPLICE ON STA 737. EXISTING SPLICE, PER REF B737 SRM 53-00-53-2R-5 REP 5. AND INSTALLED FABRICATED NEW "Z" CHANNEL FROM STA 727 TO STA 847 L/H SIDE, LBL 21" AND WL 155.5 PER DRAWING # 146A7500