What was found
***CORROSION*** AFT CARGO RH SIDE PLATE STA 727D TO STA 767 / MULTIPLE AREA'S OF CORROSION ON R/H ZEE CHANNEL STA 727-767 AFT CARGO FOUND TO BE OUT OF LIMITS. REMOVED DAMAGED ZEE CHANNEL. FABRICATED; DRILLED; AND DEBURRED NEW ZEE CHANNEL USING BAC 1496-377 7075-T62 EXTRUSION LOT # 5049572. INSTALLED NEW ZEE CHANNEL AND REPAIR SPLICES AT THE AFT CARGO R/H SIDE STA 727-767. REG: SRM 53-00-53-1A-2; 53-00-53-2R-5; AND BOEING DWG 146A7500. 57575U 12/02/17