Fire?

Gasturbine of unit 20: the support of the fluegas outlet duct showed some cracks in the welds so it has to be repaired.
The duct is now at a temperature of 22 deg Centigrade because it is stopped but when the gasturbine starts the temperature rises in no-time to about 250 deg C. and while the complete unit is starting up (boiler and steamturbine) the outlet of this gasturbine goes to 524 deg. Centigrade.
So we are not surprised when cracks occur...

Here the grinder does his work to prepare the spot for the welder.
Fire extinguisher is at hand because we do everything in a safe way....