What was found
DURING DESECENT, HAD A LANDING GEAR AIR GROUND FAIL MESSAGE ILLUMINATE ON THE EICAS, AS WELL AS A NR 1 & 2 ENGINE REVERSER DISAGREE, FOLLOWED THE EMERGENCY ABNORMAL CHECKLIST, THERE WAS NO INDICATION OF REVERSERS OPEN. FOUND THE AIR / GROUND CIRCUIT BREAKER OPEN AND WILL NOT RESET DUE TO INTERNAL SHORT OF NLG WOW SWITCH CONNECTOR P2834. REMOVED AND REPLACED THE CONNECTOR IAW SWPM 20-50-05, FUNCTIONAL CHECKED OK IAW AMM 32-63-05.