What was found
DURING C-18 CHECK FOUND PREVIOUS REPAIR DISBONDED AT OUTBOARD UPPER SURFACE OF NR 4 SPOILER FROM WBL 174.75 TO WBL 107.75. MAINTENANCE REMOVED PREVIOUS REPAIR AT OUTBOARD UPPER SURFACE OF NR 4 SPOILER FROM WBL 174.75 TO WBL 107.75; PERPARED SURFACE AND APPLIED A NEW BOND REPAIR IAW B737-300 SRM 51-70-10, REPAIR 21, FIG 30, PG 88C, D, & E, AND PG 7-31.