KKL: Weld Seam Leak on Small-Bore Pipe of the High Pressure Core Spray (CS) System (as at: 13.04.2011)
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 non-availability of the high pressure core spray system, as stated in the Technical Specifications.
The description of the event is only available in German.