As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PREVIOUSLY ENTERED BUT THE SDR DID NOT GET COMPLETED. AIRCRAFT DECLARED EMERGENCY FOR A DOOR SQUEAL. UPON FURTHER INVESTIGATION, WE FOUND THAT THE DOOR FRAME AERODYNAMIC FILLER HAD LOOSENED OVER TIME CAUSING A LOUD SQUEAL AND AIR LEAK. REPAIRS: REPAIRED THE DOOR FRAME AERODYNAMIC FILLER AS PER THE MANUFACTURER'S MANUAL RECOMMENDATIONS. THIS CASE CLOSED.