What was found
MCN - MAJOR REPAIR - DURING C18 CHECK DISCOVERED DISBOND AREA ON THE LOWER SURFACE OF THE NR 1 SPOILER, APPROXIMATELY 6 INCHES FROM INBOARD EDGE, FROM WBL 398.50L TO WBL 408.50L. MAINTENANCE REMOVED DISBOND AREA AND CORE FROM NR 1 SPOILER LOWER SURFACE IAW BOEING 737-300 SRM 51-70-10-2R3 FIG 201. FABRICATED REPAIR CORE, SEPTUM AND DOUBLER IAW BOEING 737-300 SRM 51-70-10-2R3 FIG 201. BONDED REPAIR PARTS TO THE NR 1 SPOILER LOWER SURFACE FROM WBL 398.50L TO WBL 408.50L IAW BOEING 737-300 SRM 51-70-10-2R3 REPAIR 3 FIG 201.