What was found
DURING C-18 CHECK, A 1 3/16 INCH, CRACK WAS FOUND IN FUSELAGE SKIN AT LOWER FORWARD CORNER OF L-2 DOOR BS 963, STR 17 LT. MAINTENANCE STOP DRILLED CRACK AT LOWER FORWARD CORNER OF L-2 DOOR BS 963, STR 17 LT. FABRICATED AN INNER, MIDDLE, AND OUTER PATCH, AND 3 EACH TAPERED FILLERS; INSTALLED REPAIR PARTS IAW B737-300 SRM 53-60-01, FIG 203.