What was found
ATB SAFETY STRAP AT 4L DOOR NOT PROPERLY STOWED. SLAPPING SOUND NOTED FROM OUTSIDE THE AIRCRAFT. MOC REQUESTED RETURN TO PHNL FOR INSPECTION.// UPON ARRIVAL FOUND 4L DOOR CLOSED AND FAIRED TO A/C NOTHING PROTRUDING FROM AIRCRAFT. INSPECTED 4L DOOR AND SURROUNDING AREA FOR DEFECTS AND SECURITY. NO DEFECTS FOUND, SECURITY CHK OK. PRESSURIZED AIRCRAFT PER AMM 05-53-00-780-803-A01. NO DEFECTS NOTED. OK FOR SVC.