As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER T/O "GEAR DISAGREE WARNING MESSAGE. AIRCRAFT RETURNED TO CLE AFTER T/O. EMERGENCY DECLARED. REMOVED AND REPLACED NOSE LANDING GEAR PRIORITY VALVE IAW CRJ 200 AMM 32-30-01, OPS CHECK AND LEAK CHECK GOOD, DEFERRED CLEAR OK FOR SERVICE. (B)