What was found
CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT LBL 21 BS 727E+2; BS 727E+6; BS 727E+10; BS 727E+14; BS 727E+18; BS 747+2; BS 747+6; BS 747+10; BS 747+14; BS 747+18.<[01] VERIFIED APPLICABILITY OF SRM 53-00-53-1A-2;[02] REMOVED CORROSION ON AFT CARGO BAY UPPER SURFACE FROM FLOOR TO SIDEWALL SUPPORT AT LBL21;WL 156;BS747+6;MEASURE:L=1.1;W=.5;D=.011';ORIGINAL TICKNESS IS 0.040';REMAINING TICKNESS IS 0.029';FOUND AREA OUT OF LIMITS;IAW SRM 53-00-53-1A-2 ALLOWABLE DAMAGE 2 PARAG.4A(2) DETAIL D FIG.103.TOOL USED:ATS2677;S/N:UNKNOWN;DUE:11/2023.;[03] VERIFIED CORRECTIVE ACTION STEPS 1 AND 2.;[04] WILL BE COMPLETED WITH CARD#TTG8QOOH64SO.;[05] VERIFIED CORRECTIVE ACTION ITEM 4.;[06] CORRECTED MEASUREMENT TABLE TO REFLECT A MAJOR REPAIR INSTEAD OF A MINOR;[07] ALL MAINTENANCE ACTION ARE COMPLETED WITH CARD#TTG8QOOH64SO.REQUIRE FINAL BUY OFF.;[08] VERIFIED CORRECTIVE ACTION #7.<BR>VERIFIED MEASUREMENTS.