As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, THE CREW ATTEMPTED TO RETRACT THE GEAR AND RECEIVED ALL GEAR INDICATIONS. THE CREW CONTACTED MAINTENANCE CONTROL AND RETURNED TO THE FIELD. MAINTENANCE INSPECTED AND FOUND THE LANDING GEAR PINS INSTALLED IN THE LANDING GEAR. THE PINS WERE REMOVED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.