As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THE NOSE GEAR WOULD NOT RETRACT AFTER TAKE OFF. AIRCRAFT RETURNED TO CLT LANDING WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT USING THE AIRCRAFT MAINTENANCE MANUAL. THE NLG SENSOR PS14GA WAS FOUND OUT OF LIMITS. THE SENSOR WAS ADJUSTED AND SYSTEM CHECKED PER THE AIRCRAFT MAINTENANCE MANUAL. AIRCRAFT WAS RELEASED FOR SERVICE.