What was found
TWENTY-SEVEN EACH CABIN WINDOW FRAMES CORRODED BEYOND LIMITS PER ATR42 SRM 53-51-00, FIGURE 301, PAGE 309, AT LOCATIONS WINDOW LT NRS 2, 3, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, AND 16; RT NRS 1, 2, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, AND 17. THIS AIRCRAFT OPERATES IN A SALT WATER ENVIRONMENT AND IT APPEARS THE MOISTURE IS BEING TRAPPED BETWEEN THE WINDOW SEAL AND FRAME ALONG THE WINDOW LOWER RADIUS.