As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR SHUTTLE 9342 FROM SAT TO DEN RETURNED TO FIELD DUE TO THE NLG WOULD NOT RETRACT WITH AN ASSOCIATED DISAGREE & DOOR MESSAGES. MX ADJUSTED THE NLG PROXIMITY SWITCH AND THE SYSTEM OPERATED NORMALLY. A/C DEPARTED WITHOUT FURTHER INCIDENT.