As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE, SELECTED GEAR LEVER UP. RECEIVED TRIPLE CHIME AND DISAGREE AURAL MESSAGE. GOT GEAR DISAGREE NOSE GEAR DOOR WARN MESSAGES AND WOW INPUT AND NWS INOPERATIVE CAUTION MESSAGES. EXECUTED QRH IN THAT ORDER, HAD 3 GEAR DOWN LOCKED INDICATIONS. REMOVED AND REPLACED NLG SELECTOR VALVE, SWING OF NLG CHECKS GOOD IAW AMM 32-33-10. (K)