What was found
FWD CARGO DOOR CUTOUT AFT SHIELD BETWEEN STA 500 AND STA 500A RBL 21' UPPER SURFACE CORROSION / [01] REMOVED CORROSION AT FWD. CARGO COMPT. AFT. SHIELD; BETWEEN STA. 500 & 500A; RBL 21; UPPER SURFACE; AS PER B737-7 SRM 51-10-02.;[02] ORIG. MAT. : 0.032'; MAT. REMOVED: 0.020'; REMAINING MAT. : 0.012'. FOUND OUT OF LIMITS; AS PER B737-7 SRM 53-00-53-1A-2. TOOL USED: ID #453047; DUE DATE: 12/03/22.;[03] VERIFIED STEPS 1 AND 2;[04] RECEIVED NEW SHIELD P/N: 143A8126U31; PO#: 17772343; ISSUED TAG: WN16489. THE SHIELD WAS REMOVED & WILL BE INSTALLED ON CARD: TTG8Q004DHNZ.;[05] VERIFIED STEP 4