What was found
MAIN CABIN L/H CUSP WEB ANGLE (MOP SILL) UPPER SURFACE HAS CORROSION AT BS 1623. REMOVED CORROSION AT MAIN CABIN L/H CUSP WEB ANGLE MOP SILL (CREASE BEAM)IAW B 757 SRM 51-10-02-OG.EVALUATED AREA ORIGINAL MAT .070" MAT REM .061",MAT LOSS .009" FOUND TO BE OUT OF LIMITS IAW B 757 SRM 53-60-13-1A FIG 101 DETAIL VIII. CUT OUT DAMAGE AREA STA 1589,TRIMMED,LOCATED,DRILLED AND INSTALLED NEW MOP SILL (CREASE BEAM) SECTION DIM 40" LONG,REPAIR SPLICE CHANNEL DIM 12" LONG,REPAIR STRAP DIM 11"X1",IAW B 757SRM 53-00-13-2R REPAIR 1,FIG 201 DETAIL II., ALT 1