As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED GEAR DISAGREE WARNING MESSAGE AFTER TAKEOFF AND CLIMBING THROUGHT 4000 FEET. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT AND ADJUSTED PX22 SENSOR AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.