What was found
RIGHT ENTRY DOOR HAS LOUD SQUEAL WITH A FLAPPING SOUND IN FLIGHT. TESTED DOOR OPERATION IAW AMM 52-11-00-2, OPERATION NORMAL. INSPECTED DOOR IAW 52-11-00-6, NO ABNORMALITIES FOUND, ALSO CHECKED DOOR FLUSHNESS IAW AMM 52-11-00-5, ALL CHECKED GOOD. PRESSURIZED ACFT IAW AMM 05-51-24-2, NO SQUEAL NOTED. ACFT OK FOR CONTINUED SERVICE AT THIS TIME.