What was found
FWD CABIN ABOVE L-1 DOOR UPPER SILL CUTOUT FWD FRAME FLANGE CUTOUT CRACKED @ STA 312 MKD DOT / [01] CLEANED AREA FOR EVALUATION AS PER SRM 51-10-02-0G-0;[02] PERFORMED HFEC INSP. AT FWD CABIN ABOVE L-1 DOOR UPPER SILL CUTOUT FWD FRAME FLANGE CUTOUT CRACKED @ STA 312 IAW B737 NDT PART 6; 51-00-00; PROCEDURE 23. CRACK CONFIRMED <BR>TOOL: NORTEC 600 B/C: 166317 DUE: 10/20/22;[03] ACCOMPLISHED SWA REPAIR # M-22-153-01244 AT BS 312 FRAME UPPER CHORD AT LBL 33 AND BETWEEN STR. 5L TO STR S6L.;[04] VERIFIED STEP 1 - CLEANED AREA FOR EVALUATION;[05] VERIFIED STEP 3 - ACCOMPLISHED SWA REPAIR # M-22-153-01244 AT BS 312 FRAME UPPER CHORD AT LBL 33 AND BETWEEN STR. 5L TO STR S6L.