What was found
TYS---CO4148, CREW REPORTED LANDING GEAR AIR/GROUND FAIL AND ENGINE 1/2 REVERSER DISAGREE (LIGHTS CAME ON), AIR RETURNED BACK TO TYS AND LANDED UNEVENTFULLY. MAINTENANCE FOUND NOSE LANDING GEAR PROXIMITY SWITCH PROBLEM, PROPERLY INSTALLED NOSE PROXIMITY WOW SWITCH REFERENCE EMB145 MM 32-61-01. OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.