ML20128L149

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Safety Evaluation Supporting Licensee Response to Generic Ltr 83-28,Items 3.1.1 & 2,3.2.1 & 2,4.1 & 4.5.1 Re post- Maint Testing & Reactor Trip Sys Reliability
ML20128L149
Person / Time
Site: Callaway Ameren icon.png
Issue date: 07/03/1985
From:
Office of Nuclear Reactor Regulation
To:
Shared Package
ML20128L119 List:
References
GL-83-28, NUDOCS 8507110256
Download: ML20128L149 (4)


Text

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O ENCLOSURE SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION GENERIC LETTER 83-28, ITEMS 3.1.1, 3.1.2, 3.2.1, 3.2.2, 4.1 AND 4.5.1 CALLAWAY PLANT, UNIT 1 DOCKET N0. STN 50-483 s

1.0 Introduction A.

Background Information Subsequent to the anticipated transient without scram (ATWS) events at the Salem Nuclear Power Plant, the Commission reviewed intermediate term actions to be taken by the licensees. The actions taken were developed on the basis of information contained in NUREG-1000,

" Generic Implications of ATWS events at the Salem Nuclear Power Plant". On July 8, 1983, Generic Letter (GL) 83-28 was issued by the staff. The letter identified staff positions developed from review of the Salem ATWS events. These positions are related to reactor trip system reliability and general management capability.

The specific GL 83-28 items covered by this Safety (Evaluation are Sections 3.1.1 and 3.1.2, " Post-Maintenance Testing RTS Components)"; 3.2.1 and 3.2.2, " Post-Maintenance Testing (All Other Safety-Related Compo-nents)"; 4.1, "RTS Reliability (Vendor Related Modifications)"; and 4.5.1, "RTS Reliability (System Functional Test Description)".

B.

Licensee's Responses to Generic Letter (GL) 83-28 By letters dated November 18, 1983 and March 12, 1984, the licensee responded to the above mentioned items in GL 83-28. The licensee summarized the results of the requested review and concluded that these items have been appropriately addressed.

C.

Scope of Review The staff's review consisted of an evaluation of the responses to determine if the staff positions regarding the above mentioned items in GL 83-28 have been satisfied. The evaluation for each of the items is given below.

2.0 Evaluation A.

Items 3.1.1 and 3.1.2, " Post-Maintenance Testing (RTS Components)"

The review criteria for these items require that the licensee submit a statement indicating that he has reviewed plant test and maintenance procedures and Technical Specifications to ensure that post-mainte-nance operability testing of safety-related components in the reactor trip system is required. Also, the licensee's statement should con-tain a verification that vendor recommended test guidance has been 8507110256 850703 DR ADOCK 05000483 p

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. reviewed, evaluated, and where appropriate, included in the test and maintenance procedures or the Technical Specifications. The staff has evaluated the licensee's November 18, 1983, submittal for this item and has determined it to be adequate in content.

B.

Items 3.2.1 and 3.2.2, " Post-Maintenance Testing (All Other Safety-Related Components)"

The review criteria for these items require that the licensee submit a statement indicating that he has reviewed plant test and mainte-nance procedures and Technical Specifications to ensure that post-maintenance operability testing of all safety-related components is required. Also, a statement is required that contains a verification that vendor recommended test guidance be reviewed, evaluated, and where appropriate, included in the test and maintenance procedures or the Technical Specifications.

The staff has evaluated the licensee's November 18, 1983, submittal for this item and has determined it to be adequate in content.

C.

Item 4.1, "RTS Reliability (Vendor Related Modifications)"

The review criteria for this item requires that the licensee submit a statement indicating that he has reviewed all vendor recommended reactor trip breaker modifications and determined that (1) each modification has been implemented or (2) a written evaluation which specifies that the technical reasons for not implementing the modifi-cation exists. The staff has evaluated the licensee's March 12, 1984, submittal for this item and has determined it to be adequate in content.

D.

Item 4.5.1, "RTS Reliability (System Functional Test Description)"

The review criteria for this item requires that the licensee submit a statement committing to independent, on-line functional testing of the diverse trip features. The staff has evaluated the licensee's November 18, 1983, submittal for this item, committing to on-line testing of the undervoltage trip and automatic shunt trip features, and has determined it to be adequate in content.

3.

Conclusion The staff concludes that the programs outlined in the licensee's submittals adequately address the requirements of Generic Letter 83-28 for the areas 4

specified in this Safety Evaluation.

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Mr. D. F. Schnell Callaway Plant Union Electric Company Unit No. I cc:

Mr. Nicholas A. Petrick Mayor Howard Steffen Executive Director - SNUPPS Chamois, Missouri 65024 5 Choke Cherry Road Rockville, Maryland 20850 Professor William H. Miller Missouri Kansas Section, American Gerald Charnoff, Esq.

Nuclear Society Thomas A. Baxter, Esq.

Department of Nuclear Engineering Shaw, Pittman, Potts & Trowbridge 1026 Engineering Building 1800 M Street, N. W.

University of Missouri Washington, D. C.

20036 Columbia, Missouri 65211 Mr. J. E. Birk Mr. Robert G. Wright Assistant to the General Counsel Assoc. Judge, Eastern District Union Electric Company County Court, Callaway County, Post Office Box 149 Hissouri St. Louis, Missouri 63166 Paute #1

'ulton, Missouri 65251 Mr. Bruce Little Lewis C. Green, Esq.

U. S. Nuclear Regulatory Commission Green, Hennings & Henry Resident Inspectors Office Attorney for Joint Intervenors RR#1 314 N. Broadway, Suite 1830 Steedman, Missouri 65077 St. Louis, Missouri 63102 Mr. Donald W. Capone, Manager Mr. Earl Brown Nuclear Engineering School District Superintendent Union Electric Company Post Office Box 9 Post Office Box 149 Kingdom City, Missouri 65262 St. Louis, Missouri 63166 Mr. Harold Lottman A. Scott Cauger, Esq.

Presiding Judge, Dasconade County Assistant General Counsel for the Route 1 Missouri Public Service Comm.

Owensville, Missouri 65066 Post Office Box 360 Jefferson City, Missouri 65101 Mr. John G. Reed Route #1 Ms. Marjorie Reilly Kingdom City, Missouri 65262 Energy Chairman of the League of ikxmen Voters of Univ. City, M0 Mr. Dan I. Bolef, President 7065 Pershing Avenue Kay Drey, Representative l

University City, Missouri 63130 Board of Directors Coalition for the Environment Mr. Donald Bollinger, Member St. Louis Region Missourians for Safe Energy 6267 Delmar Boulevard 6267 Delmar Boulevard University City, Missouri 63130

-University City, Missouri 63130 l

. Callaway Plant Unit No. 1 cc:

Regional Administrator U. S. NRC, Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Mr. Ronald A. Kucera, Deputy Director Department of Natural Resources P. O. Box 176 Jefferson City, Missouri 65102 Mr. Glenn L. Koetter Vice President - Nuclear Kansas Gas and Electric Company 201 North Market Street Post Office Box 208 Wichita, Kansas 67201 Eric A. Eisen, Esq.

Birch, Horton, Bittner and Moore Suite 1200 1155 Connecticut Avenue, N. W.

Washington, D. C.

20036