What was found
DURING FLIGHT A FLIGHT ATTENDANT REPORTED VIBRATION AT THE AFT GALLEY FLOOR. VIBRATION STOPPED AND THEN STARTED AGAIN DURING FLIGHT. ALL SYSTEMS INDICATED NORMAL AND AIRCRAFT CONTINUED TO SCHEDULED DESTINATION AND LANDED WITH NO INCIDENT. AIRCRAFT WAS INSPECTED IAW SERVICE LETTER 737-5L-02-002-D. THE AFT LAV SERVICE DOOR WAS FOUND FAIRED INCORRECTLY. DOOR WAS SPEED TAPED AND AN EVALUATION FLIGHT WAS PERFORMED WITH NO DEFECTS NOTED THROUGHOUT FLIGHT. DOOR WAS REMOVED TO FOM AND PLACED ON CDL 52-40-03 CI C122906. VIBRATION OCCURRED AGAIN WITH DOOR REMOVED. INSTALLED DOOR IAW MM 38-30-0.