What was found
UPON LANDING AT ANC, RUNWAY 6L PILOT EXPERIENCED UNCOMMANDED BRAKING ACTION ON THE LT MLG. A/C CONTINUED LANDING ROLLOUT AND STOPPED AT THE INTERSECTION OF 6L AND 6R. THERE WAS NO DAMAGE TO THE A/C. MAINTENANCE FOUND NR 1 AND 2 BRAKES FROZEN. MAINTENANCE DETERMINED THAT THE NR 1 BRAKE DE-ICE SYSTEM WAS NOT WORKING. FOUND AND REPAIRED OPEN BUTT SPLICE ON WIRE FROM BRAKE DE-ICE SWITCH TO BRAKE DE-ICE PCB. BRAKE DE-ICE OPS CHECK OK, AIRCRAFT RETURNED TO SERVICE. (M)