With support of a Super Major Oil & Gas Operator InnetiQs developed the advanced deep sea crawler FADS Type E-01. The advanced and high-resolution scan technology integrated in a self-crawling ROV deployed deep-sea remote-controlled system is focused to detect Flexible Riser annulus flooding with a high reliability for the use from the splash zone area to deep sea. The in-house developed system has gone successfully through various pressure and operational tests prior to operate in the field.