What was found
PASSENGER REPORTED LOUD SQUEALING SOUND COMING FROM THE EMER EXIT AT ROW 11 ON RT SIDE OF ACFT. REMOVED RT WING EMER EXIT DOOR, INSPECTED NO DEFECTS NOTED, INSTALLED DOOR IAW AMM 52-21-00. PRESSURIZED ACFT IAW AMM 21-31-00, NO DEFECTS NOTED, RETURN TO SERVICE.