As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE AFTER TAKEOFF. NOSE GEAR DID NOT COME OUT OF DOWN AND LOCKED. AIRSPEED MAINTAINED LESS THAN 190 KNOTS COMPLIED WITH QRH ALL GEAR WENT DOWN AND LOCKED AS NORMAL. REMOVED AND REPLACED NLG PRIORITY VALVE P/N 4622 IAW CRJ AMM 32-33-51. (M)