As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A GEAR DISAGREE MESSAGE AFTER TAKOFF FROM DAY. AIRCRAFT RETURNED TO DAY. MAINTENANCE TROUBLESHOT, REMOVED AND REPLACED THE NOSE LANDING GEAR. TESTS AND FUNCTIONAL CHECKS WERE ACCOMPLISHED PER THE AIRCRAFT MAINTENANCE MANUAL. AIRCRAFT WAS RELEASED FOR SERVICE.