IR 05000483/2003010
| ML032180612 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 08/06/2003 |
| From: | Gage P Division of Reactor Safety I |
| To: | Randolph G Union Electric Co |
| References | |
| IR-03-010 | |
| Download: ML032180612 (7) | |
Text
August 6, 2003
SUBJECT:
CALLAWAY PLANT - NRC PROBLEM IDENTIFICATION RESOLUTION INSPECTION REPORT 05000483/2003-010
Dear Mr. Randolph:
On July 24, 2003, the above mentioned report was mailed. In the reproduction of the document, page 2 of the report details was issued blank. Please replace the blank page with the attached page 2. We regret any inconvenience this may have caused.
Sincerely,
/RA/
Paul C. Gage, Acting Chief Operations Branch Division of Reactor Safety Docket: 50-483 License: NPF-30 cc:
Professional Nuclear Consulting, Inc.
19041 Raines Drive Derwood, Maryland 20855 John ONeill, Esq.
Shaw, Pittman, Potts & Trowbridge 2300 N. Street, N.W.
Washington, D.C. 20037
Union Electric Company-2-Mark A. Reidmeyer, Regional Regulatory Affairs Supervisor Regulatory Affairs AmerenUE P.O. Box 620 Fulton, Missouri 65251 Manager - Electric Department Missouri Public Service Commission 301 W. High P.O. Box 360 Jefferson City, Missouri 65102 Ronald A. Kucera, Deputy Director for Public Policy Department of Natural Resources P.O. Box 176 Jefferson City, Missouri 65102 Rick A. Muench, President and Chief Executive Officer Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, Kansas 66839 Dan I. Bolef, President Kay Drey, Representative Board of Directors Coalition for the Environment 6267 Delmar Boulevard University City, Missouri 63130 Chris R. Younie, Manager Quality Assurance AmerenUE P.O. Box 620 Fulton, Missouri 65251 Jerry Uhlmann, Director State Emergency Management Agency P.O. Box 116 Jefferson City, Missouri 65102-0116 Scott Clardy, Director Section for Environmental Public Health P.O. Box 570 Jefferson City, Missouri 65102-0570
Union Electric Company-3-Keith D. Young, Manager Regulatory Affairs AmerenUE P.O. Box 620 Fulton, Missouri 65251 David E. Shafer Superintendent, Licensing Regulatory Affairs AmerenUE P.O. Box 66149, MC 470 St. Louis, Missouri 63166-6149
Union Electric Company-4-Electronic distribution by RIV:
Acting Regional Administrator (TPG)
DRP Director (ATH)
Acting DRS Director (ATG)
Senior Resident Inspector (MSP)
Branch Chief, DRP/B (DNG)
Senior Project Engineer, DRP/B (RAK1)
Staff Chief, DRP/TSS (PHH)
RITS Coordinator (NBH)
J. Shea (JWS1)
CWY Site Secretary (DVY)
ADAMS: Yes
No Initials: ______
Publicly Available
Non-Publicly Available
Sensitive
Non-Sensitive C:OB PCGage/lmb
/RA/ ATG for 08/06/03 OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax
-2-b.
Prioritization and Evaluation of Issues (1)
Inspection Scope The team reviewed approximately 60 Callaway action requests and supporting documentation. This effort was accomplished to verify that licensees evaluation of problems identified considered the full extent of conditions, operability of affected systems, reportability requirements, generic implications, common causes, and previous occurrences. In addition, the team reviewed the licensees evaluation of select industry experience information to assess if issues applicable to the licensees facility were appropriately addressed.
Specific documents reviewed during this inspection are listed in the attachment to this report.
(2)
Issues The issues reviewed by the team revealed that the proper categorization had been assigned to identified issues. In general, problems were adequately evaluated and corrected with some exceptions. One exception included a failure to promptly identify and correct an industry known deficient condition affecting the functionality of multiple safety-related circuit breakers. Another exception involved the failure to promptly identify and correct a voided condition affecting both trains of the containment spray system even though abnormal system response to surveillance testing was observed during several occasions dating back to 1995. These failures, reflected some isolated problems with problem identification, extent of condition reviews, root cause determinations, and corrective actions.
The team reviewed Callaway Action Request 200200694 pertaining to the licensee identifying an underlying problem associated with the effectiveness of past incident investigations and/or evaluations to determine the extent of condition for equipment problems. Although corrective actions to address this condition were still in progress the team noted that a significant effort was being taken by the licensee to improve performance in this area. Specifically, the licensee was in the process of developing clear roles and responsibilities for each layer of management to improve the level of oversight and guidance and increase the amount of communications between all levels of the staff. The licensee was also in the process of developing and implementing an equipment reliability improvement program that was projected to be fully implemented by June of 2004.
Circuit Breaker Failures Introduction. The licensee failed to promptly identify, correct, or preclude recurrence of an industry known potential significant condition adverse to quality associated with failures of Magne-Blast 4160 volt circuit breakers. The breaker failures were the result of a defective contact block assembly used as control switches in the breaker control circuits. The team determined this condition was a noncited violation of 10 CFR Part 50, Appendix B, Criterion XVI, and a finding of very low safety significance.