What was found
FWD SERVICE DOOR SCUFF PLATE IS CRACKED AT AFT LOWER CORNER. REMOVE AND REPLACED FWD SERVICE DOOR SCUFF PLATE IS CRACKED AT AFT LOWER CORNER IAW AMM 53-11-01-420-801, REJECT; FWD SERVICE DOOR FWD LOWER CORNER CUTOUT LEAK CHECK FAILED. IT HAS A HISSING SOUND FROM INSIDE & LEAK FROM OUTSIDE. REMOVED FSD SCUFF PLATE IAW AMM 53-11-01-000-801, INSTALLED FSD SCUFF PLATE IAW AMM 53-11-01-420-801. APPLIED PS 870 B1/2. WELDED THE DAMAGED AREAS ON SCUFF PLATE IAW SRM 53-10-15-2R-2 STEP 4.B(4). REFERRED TO BAC 5975 CLASS BPT INSPECTED WELDED AREAS IAW SOPM 20-20-02. NO CRACKS NOTED. SANDED THE REWORKED SURFACES AND EDGES OF SCUFF PLATE AS NECESSARY IAW SRM 53-10-15-2R-2 STEP 4.B.