ML25177A084
| ML25177A084 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 06/12/2025 |
| From: | Alferink B NRC Region 4 |
| To: | Diya F Union Electric Co |
| References | |
| OI 4-2024-003 | |
| Download: ML25177A084 (1) | |
Text
June 12, 2025 Fadi Diya, Senior Vice President and Chief Nuclear Officer Union Electric Company Ameren Missouri 8315 County Road 459 Steedman, MO 65077
SUBJECT:
CLOSURE OF INVESTIGATION (OI 4-2024-003)
Dear Fadi Diya:
This refers to an investigation conducted by the U.S. Nuclear Regulatory Commissions (NRCs)
Office of Investigations regarding activities at Callaway. The Office of Investigations initiated the investigation to determine whether licensee personnel willfully ordered maintenance personnel to strike a check valve over the course of multiple shifts despite having knowledge the practice was not acceptable and the vendor recommendations were not being followed.
Based on the evidence developed during the investigation, the concern that licensee personnel willfully ordered maintenance personnel to strike a check valve over the course of multiple shifts despite having knowledge the practice was not acceptable and the vendor recommendations were not being followed, was not substantiated. The NRC plans no further action related to the alleged wrongdoing and considers this investigation closed.
You should note that final NRC documents may be made available to the public under the Freedom of Information Act subject to redaction of information pursuant to the Freedom of Information Act. Requests under the Freedom of Information Act should be made in accordance with 10 CFR 9.23, Requests for Records. Information is accessible from the NRCs website at http://www.nrc.gov/reading-rm/foia/foia-request.html#how.
ADAMS Accession # ML25177A084
F. Diya 2
In accordance with 10 CFR 2.390 of the NRCs Agency Rules of Practice and Procedure, a copy of this letter will be made available electronically for public inspection in the NRC Public Document Room or from the NRC's Agencywide Documents Access and Management System (ADAMS), accessible from the NRC website at http://www.nrc.gov/reading-rm/adams.html.
Sincerely, Beth Alferink, Team Leader Allegation Coordination and Enforcement Staff Docket No. 05000483 License No. NPF-30