What was found
MCN - MAJOR REPAIR - DURING C16 CHECK DISCOVERED 3 CRACKS, .375 INCHES IN LENGTH, FROM SS 167.5L TO SS 172L, ON THE BOTTOM OF THE NR 2 SLAT SKIN, INBOARD OF THE TELESCOPING ANTI ICE TUBE. MAINTENANCE REMOVED THE DAMAGED SKIN ON THE NR 2 SLAT IAW BOEING 737-300 SRM 57-43-01-2. FABRICATED FILLER AND SPLICE PLATE IAW BOEING 737-300 SRM 57-43-01-2R 6 FIG 201. INSTALLED FABRICATED REPAIR PARTS AT THE BOTTOM OF THE NR 2 SLAT, INBOARD OF THE TELESCOPING ANTI ICE TUBE, SS 167.5L TO SS 172L, IAW BOEING 737-300 SRM 57-43-01-2R 6 FIG 201.