What was found
CRACK ON FUSELAGE SKIN AT HILOCK, AT BS 720E+8 AND STR 27L. CRACK CAUSED BY CORROSION ON STRINGER AND SKIN. CUT OUT DAMAGED SKIN, 6.75" BY 3.5", FABRICATED DOUBLER FROM 2024-T3, .125" BY 18" BY 11", PO NR 9005400, PER B727 SRM 53-30-3 FIG 1 AND 53-30-2 FIG 2. TREATED, PRIMED, AND INSTALLED REPAIR DOUBLER PER B727 SRM 51-10-2 & 53-30-1 FIG 1. CUT OUT CORRODED STRINGER SECTION, 18" LONG, FABRICATED FILLER REPAIR FROM BAC1498-147 EXTRUSION, 18" LONG, PO NR 6320105, AND STR SPLICE FROM BAC1498-131 EXTRUSION, 12" LONG, PO NR 7232174, PER B727 SRM 53-10-3 FIG 1 AND 53-10-2 FIG 9. TREATED, PRIMED, AND INSTALLED STRINGER REPAIR PARTS PER B727 SRM 51-10-2 AND 53-10-3 FIG 1.