What was found
AIR-GND DISAGREE, NOSE AIR GND DISAGREE AND LDG GEAR MONITOR EICAS MSG''S DISPLAYED AFTER TAKEOFF. ALSO HAD AUTO THROTTLE DISCONNECT, TAIL SKID MSG, PROBE HEAT. ALL EICAS MSG''S CLEARED EXCEPT AIR-GND DISAGREE, NOSE AIR GND DISAGREE AND LDG GEAR MONITOR. DIVERTED TO ORD. *S/D* REPLACED PROXIMITY SWITCH ELECTRONIC UNIT.