As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: 1ST FLIGHT ATTENDANT REPORTED THAT 1L DOOR IS NOISY IN FLIGHT. MAINTENANCE FOUND THE L1 DOOR FORWARD SIDE SECOND FROM THE TOP DOOR STOP FITTING OUT OF RIG DUE TO THE ADJUSTMENT BOLT LOOSE WITH DAMAGED THREADS. REPLACED BOLT AND ADJUSTED DOOR STOP FITTING PER AMM 52-11-31 AND 52-11-00. A SATISFACTORY PRESSURIZATION TEST WAS ACCOMPLISHED PER AMM 05-53-00-780.