As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7981 - ROA - LANDING GEAR AIR/GROUND FAIL MESSAGE ON THE EICAS AFTER TAKEOFF AND LANDING GEAR LEVER WOULD NOT MOVE UP WITHOUT USING THE DOWN LOCK RELEASE BUTTON. MAINTENANCE INSPECTED AND CLEANED DEBRIS FROM THE LANDING GEAR PROXIMITY SWITCHES. OPS CHECKED GOOD.