In General Eletric, Mark 5 speedtronic turbine control system we are regularly receiving one diagnostic alarm "DCC I/O card went to state A3" (drop No. 0034). I came to know that we can find out which card went to state A3 through the LCC card display.
Can any one please help me to find out which card went to state A3. Thank you.

 

You might contact a company in New York, Gas Turbine Controls. They supply Speedtronic Mk V parts, and might be able to help you. Their web site is http://www.gasturbinecontrols.com.