As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JAX-CLE FLT NR 2050- LANDING GEAR/AIR GROUND FAIL MESSAGE ANNUNCIATED DURING FLIGHT. DIVERTED TO TYS WITHOUT INCIDENT. THE LT MLG TRAILING ARM PROX SWITCH WAS ADJUSTED IAW EMB 145 AMM 32-63-05 AND OPS CHECKED GOOD. THE A/C WAS RETURNED TO SERVICE.