As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANTS REPORT THAT THE MAIN CABIN DOOR IS DIFFICULT TO CLOSE AND MAKES A LOUD WHISTLING NOISE AT CRUISE ALTITUDE. MAINTENANCE FOUND THE MOORING LINE FOR L1 DOOR SLIDE NOT SECURED TO GIRT BAR AND HANGING OUT IN AIRSTREAM. SECURED LINE TO GIRT BAR. L1 DOOR OPS NORMAL.