What was found
(LOG 0189887) AFT CARGO BAY L/H Z CHANNEL IS DAMAGED IN SEVERAL AREAS FROM STA 727G-727I, LBL 25, WL 156. FABRICATED NEW ZEE CHANNEL SECTION FROM STA 727E+12" TO STA 727I +6", LBL 25, WL 156 AT AFT CARGO PER B737 SRM 53-00-53-2R-6, PARA.4.D. TABLE 201, B737 SRM 51-40-02-0G PARA.4.B AND DWG# 146A7500.