A faulty resistor on an electronic card led to the failure of a module in the turbine control system. As a result, the control dampers on the low pressure turbines closed slowly.

During a function test on the high pressure core spray (CS) system, a thin jet of water was detected. This jet emerged from a weld seam on a small-bore pipe leading to a safety valve. The function test was interrupted, and the affected section of the small-bore pipe was replaced within the permissible time for…