What was found
AFTER T/O TRIED TO RETRACT FLAPS BUT GOT A KRUGER LIGHT. RECYCLED 2 TIMES RAN QRH. KRUGER REMAINED EXTENDED. RETURNED TO OAK AND AFTER LANDING KRUGERS RETRACTED. FOUND FAULT BALL SHOWS ON SFCC 1, LT RETRACT SW. REMOVED AND REPLACED LT RETRACT SWITCH PER MM 27 89 12 4, OPS CHECK FOUND NORMAL, RAN ENGINE 2 PER JRH AND RAN FLAPS SLATS UP AND DOWN COUPLE OF TIMES KRUEGER FLAPS WORKED NORMALLY.