What was found
DURING C-CHECK, FUSELAGE SKIN HAS A DENT AFT BS 1070 BELOW STR 20L. REMOVED FASTENERS FOR ACCESS BS 1070 STR 20 L IAW B-727 SRM 51-30-2. REMOVED AFT LT SIDE WALL AIR DUCT FOR ACCESS IAW B-727 SRM 36-00-01. CUT OUT DAMAGED AREA IAW B-727 SRM 53-30-3 FIG 2 DIMENSION 1.5 X 1.4. FABRICATED ONE DOUBLER DIMENSION 11.5 X 10 USING 2024 T-3 .071 INCH, PO 9912441 AND ONE FILLER DIMENSION 1.5 X 1 USING .063 2024 T-3 PO 9912380 IAW B-727 SRM 53-30-3 FIG 2. ALODINED AND PRIMED REPAIR PARTS IAW B-727 SRM 51-10-2. INSTALLED REPAIR PARTS IAW B-727 SRM 53-30-3 FIG 2. REINSTALLED AIR DUCT REMOVED FOR ACCESS IAW B-727 SRM 36-00-01.