What was found
DURING CRUISE FLIGHT AT FLS 410, 430, 450, THE DOOR SEAL ON CABIN DOOR IS NOT SEALING ADEQUATELY. OBSERVED LOUD AIR NOISE & DAYLIGHT ALONG VERTICAL PORTION OF RT OF DOOR. INSPECTED THE SEAL AROUND DOOR & FOUND NO MAJOR FAULTS WITH THE SEAL ITSELF. I INSPECTED DOOR & THE FRAME AS WELL & FOUND NO DEFECTS. CYCLED DOOR OPEN & CLOSE TO SEE IF THE DOOR WAS SETTING INTO CORRECT POSTION, NO DEFECTS NOTED. PERFORMED GVI OF MAIN DOOR SEAL, NO DEFECTS FOUND. CLOSED CABIN DOOR & FOUND A SMALL AMOUNT OF LIGHT SHINING THROUGH FWD SIDE OF DOOR SEAL ADJUSTED DOOR SEAL IAW AMM. PRESSUREIZED ACFT & NO DEFECT FOUND. OPS/LEAK CHECK GOOD. PERFORMED WORK IAW MM 21-00-00 & 52-11-37.