As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A LOUD SQUEAL IN COCKPIT ON CLIMBOUT. CREW RETURNED TO CLT WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FOUND THE EXTERNAL POWER DOOR OPEN. MAINTENANCE CLOSED THE DOOR, INSPECTED AND FOUND NO DEFECTS. AIRCRAFT WAS RELEASED FOR SERVICE.