As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TEST FLIGHT 3160 A CAUTION MESSAGE CAME UP ON THE EICAS AND WOULD NOT CLEAR. PILOT USED DOWNLOCK RELEASE BUTTON TO RAISE AND LOWER GEAR. THE AIRCRAFT COMPLETED FLIGHT WITH NO OTHER INCIDENTS. MAINTENANCE ADJUSTED LEFT HAND MAIN LANDING GEAR WOW SWITCH IAW EMB 145 AMM 32-63-05. OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS APPROVED TO RETURN TO SERVICE.