What was found
CRACK NOTED ON LT LOWER CHORD OF KEEL BEAM AT BS 880. GAINED ACCESS AS REQ, TRIMMED DAMAGE AT UPPER FLANGE OF KEEL BEAM CHORD, APPROX 1 BY 2, PER SB 727-53-208 FIG 3. CRACK REMOVAL CONFIRMED BY HFEC METHOD. FABRICATED DOUBLER REPAIR FROM 15.5 PH STEEL, .071 BY 8.5 BY 3.625, PO NR 6522231, HEAT TREATED REPAIR DOUBLER TO 170-190 KSI, PER SB 727-53-208 FIG 3, REF PO NR 7232119 FOR HEAT TREAT. CAD PLATED REPAIR DOUBLER PER SB 727-53-208 AND FASI FORM NR FAS0036 REV 4. TREATED, PRIMED, AND INSTALLED DOUBLER REPAIR PER B727 SRM 51-10-2 AND SB 727-53-208 FIG 3. RETURNED AREA TO NORMAL.