What was found
DURING A "C" CHECK, LT L/E SKIN DENTED 15 INCH I/B OF NR 4 SLAT I/B TRACK. CUT OUT DAMAGED AREA AT LT WING L/E SKIN I/B NR 4 SLAT, I/B TRACK DIM.3/4 BY 3/4 IAW B727 SRM 57-30-4 FIG.1. FABRICATED DOUBLER REPAIR MAT'L 2024 T3 .050 PO 9001873 DIM 3 1/4 BY 3 3/4 IAW B727 SRM 57-30-2 FIG 3 AND 57-30-1 FIG 1. TREATED, ALODINE AND PRIMED IAW B727 SRM 51-10-. INSTALLED REPAIR DOUBLER AT LT WING L/E SKIN I/B OF NR 4 SLAT I/B TRACK IAW B727 SRM 51-30-2.