What was found
AFTER TAKEOFF NR 1 SYSTEM FAULT, FLAPS RETRACTED NORMAL FROM 20/20. NEXT RETRACTION GOT BOTH SYSTEM 1 & 2 FAULT. SLATS LOCKED AT 15 DEG. FOLLOWED QRH PROCEDURES, RECYCLED AND NO HELP. SET UP FOR SLATS 15 STUCK LANDING. SFCC NR 2 WAS REMOVED AND REPLACED DUE TO HARD FAULT AT BLOCK-IN REF A310 AMM 27-51-18-4. TROUBLESHOT BOTH SFCC COMPUTERS AND FOUND THE NR 2 SFCC WOULD CONTINUALLY FAULT THE RT KRUEGER. REPLACED THE RT KRUEGER FLAP RETRACT SWITCH IN REF TO AIRBUS AMM A310-20 0 27-51-18-4, 27-89-00-6. SYSTEM OPERATES AND CHECKS NORMAL.