What was found
DURING C15 CHECK DISCOVERED DISBOND AREA ON THE UPPER SURFACE OF THE NR 5 SLAT WEDGE, OUTBOARD END AT SLAT STATION (SS) 252.27 TO SS 254.27. MAINTENANCE REMOVED PREVIOUS REPAIR DOUBLER AND DISBOND AREA ON UPPER SURFACE OF THE NR 5 SLAT WEDGE. FOUND LOWER SURFACE ALSO DISBONDED, REMOVED DISBOND AREA FROM LOWER SURFACE OF NR 5 SLAT WEDGE. MAINTENANCE FABRICATED REPLACEMENT CORE AND DOUBLER IAW BOEING 737-300 SRM 51-70-10-2R4. BONDED FABRICATED REPAIR PARTS ON UPPER AND LOWER SURFACE OF THE NR 5 SLAT WEDGE, OUTBOARD END AT SS 252.27 TO SS 254.27 IAW BOEING 737-300 SRM 51-70-10-2R4.