What was found
I.T. ISS BY L1 DOOR STARTED AT 8000FT DIFFICULTY IN YELLOW .87 CABIN ALT 6200, DIFFICULTY ALT 6200 DIFF AT FL 210 NOISE STOPPED, DIFFICULTY ALT 4KFOUND PRESSURE SEAL OFF TRACK AT LOWER SECTION OF THE DOOR REPOSITIONED. THE SEAL IAW AMM 52 09 01