As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED CAPTAIN`S DV WINDOWN HAD A STRONG WIND NOISE AT 100 KNOTS AND MADE A LOUD BANGING NOISE. CREW DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE WITHOUT INCIDENT. MAINTENANCE INSPECTED EXTERIOR OF ACFT, DV WINDOW, FRAME AND SEAL IAW AMM AN NO DEFECTS WERE FOUND. MAINTENANCE PRESSURIZED AIRCRAFT AND NO DEFECTS WERE NOTED. ACFT IS GOOD FOR SERVICE.