As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKE OFF AND GEAR SELECTED UP, RECEIVED GEAR DISAGREE WARNING MESSAGE WITH ASSOCIATED INDICATIONS. NOSE GEAR SHOWED RED WITH BOTH MAIN AMBER, COMPLIED WITH QRH AND RECEIVED THREE GREEN GEAR INDICATIONS. EMERGENCY DECLARED, RETURNED TO DEPARTURE FOR NORMAL LANDING. R & R NLG PRIORITY VALVE IAW AMM 32-33-15.