What was found
LOUD WHISTLING SOUND EMANATING FROM UPPER PART OF MAIN CABIN DOOR AT ALTITUDE WHERE DELTA P RANGED FROM 9.2 PSI TO 6.5 PSI. PASSENGER WAS DISTURBED BY THE NOTICEABLE SOUND AND CONTACTED CREW. SEAL AROUND MAIN CABIN DOOR APPEARS TO HAVE BEEN PATCHED WHERE SOUND WAS COMING FROM. FOUND THAT THE SEAL HAD BEEN REPAIRED PREVIOUSLY AND WAS REPAIRED INCORRECTLY, SPOKE WITH NJ MCC AND THEY WANT US TO REPLACE THE SEAL, PLACED SEAL ON ORDER, REMOVED OLD SEAL AND INSTALLED NEW SEAL RTV IAW EMB-505S AMM CH 52-10-20-000-80 I-A LK AND OP'S CK GOOD.