What was found
MCN - DURING C13 CHECK DISCOVERED 5 CRACKS, 1.0 INCHES IN LENGTH, AROUND RIVETS ON THE RT WING, NR 6 SLAT FROM SS 330R TO SS 341R. MAINTENANCE CUT OUT DAMAGED SKIN ON THE RT WING, NR 6 SLAT IAW BOEING 737-300 SRM 57-43-01-2R6. FABRICATED FILLER AND SPLICE PLATE IAW BOEING 737-300 SRM 57-43-01-2R6. INSTALLED FABRICATED REPAIR PARTS ON THE RT WING, NR 6 SLAT FROM SS 330 R TO SS 341R IAW BOEING 737-300 SRM 57-43-01-2R6.