As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO RDU FOR LOUD NOISE IN COCKPIT, OVERWEIGHT LANDING. FOUND EXTERNAL SERVICE PANEL DOOR OPEN (PANEL NR 122CR) UPON RETURN TO GATE. CLOSED DOOR AS REQUIRED, NO DAMAGE NOTED. PERFORMED OVERWEIGHT LANDING INSPECTION (2000 LBS OVER) IAW CL-65 AMM 05-51-01. NO DISCREPANCIES FOUND AT THIS TIME.