Problems with cruise liner engines need to be located and fixed as quickly as possible. Finding the root causes of alarms can, however, sometimes prove difficult and diagnostics may take a long time. Team Innoboatic set out with Wärtsilä to develop new fault diagnostic tools for the engine control room crew. There is a massive amount of information available in the engine control room, but the usability of the systems has room for improvement. Our team gave an overhaul to the way alarm information is displayed and made finding problems easier and faster.