Things have changed. We solve the problem of knowing which flange assemblies (fuel and air) are leaking in the compartment. This product locates and identifies gas and air leaks during startups, commissioning, and operation of combustion turbines. Several of these systems are installed on GE 7001C, 7EA, and 7FA combustion turbines and can be installed on Siemens too. Because fuel leaks are a definite safety concern, my system is the solution.