05000498/LER-2024-002-01, Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function

Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function

ML24179A341
Person / Time
Site:	South Texas
Issue date:	06/27/2024
From:	Tomlinson J South Texas
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
NOC-AE-24004047 LER 2024-002-01
Download: ML24179A341 (1)

LER-2024-002, Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function

Event date:
Report date:
4982024002R01 - NRC Website

text

June 27, 2024 NOC-AE-24004047 10 CFR 50.73 STI: 35609717 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555- 0001 South Texas Project Unit 1 Docket No. STN 50-498 Licensee Event Report 20 24-002 -01 Supplement to Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function

Reference: Letter; J. Tomlinson (STP) to Document Control Desk (NRC); Licensee Event Report 2024-002- 00 Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function; May 9, 2024; (NOC-AE-24004040) (ML24130A271).

On May 9, 2024, STP Nuclear Operating Company (STPNOC) submitted the referenced Licensee Event Report. This letter is a supplement to the report to provide the updates results of the causal evaluation. The updated information is denoted by revision bars located in the right-hand margin. The report is submitted in accordance with 10 CFR 50.73.

The event did not have an adverse effect on the health and safety of the public.

There are no commitments in this submittal.

If there are any questions regarding this submittal, please contact Zachary Dibbern at 361-972-4336 or me at 361 -972-8945.

Jason R. Tomlinson Site Vice President

Attachment: Unit 1 LER 2024 -002 -01, Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function

cc:

Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 1600 E. Lamar Boulevard Arlington, TX 76011-4511

NOC-AE-24004047 Attachment

Attachment

Unit 1 LER 2024-002-01

Unit 1 LER 2024- 002-01, Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function