ML20093D401

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Final Deficiency Rept Re Failure to Install Seismic Positioner Plates on DS-416 Breakers.Initially Reported on 840327.Seismic Positioner Plates Installed
ML20093D401
Person / Time
Site: Wolf Creek 
Issue date: 09/21/1984
From: Koester G
KANSAS GAS & ELECTRIC CO.
To: Hunter D
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
KMLNRC-84-160, NUDOCS 8410110231
Download: ML20093D401 (1)


Text

KANSAS GAS AND ELECTRIC COMPANY THE ELECTAC COMPANY CLENN L MOESTER vict PRESIDENT - Nuclear September 21, 1984 Mr. D.R. Hunter, Chief Reactor Project Branch 2 ggggggi

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c la U C 5 U.S. Nuclear Regulatory Commission

) } 3ia Region IV 611 Ryan Plaza Drive, Suite 1000 g{p 24gt Arlington, Texas 76011

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  • A;w KMLNRC 84-160 Re:

Docket No. STN 50-482 Ref:

Interim Report KMLNRC 84-071 dated 4/26/84 from GLKoester, KG&E, to EHJohnson, NRC Subj: Potential 10CFR50.55(e) Final Report -

Seismic Positioner Plates on DS-416 Breakers

Dear Mr. Hunter:

This letter provides the final report on a potential 10CFR50.55(e) con-cerning seismic positioner plates on Westinghouse DS-416 reactor trip breakers supplied to Wolf Creek Generating Station. This matter was initially reported to Mr. William Johnson of the Nuclear Regulatory Com-mission, Region IV, by Mr. O.L. Maynard of Kansas Gas and Electric Company (KG&E) on March 27, 1984.

During a field inspection of the four DS-416 reactor trip breakers, it was observed that the required seismic positioner plates had not been installed on these breakers. The omission of the seismic positioner plates could possibly have limited the ability of the reactor trip breaker assemblies to perform their function during a seismic event. In order to alleviate this concern, seismic positioner plates were provided by the breaker manufacturer and installed in the reactor trip breaker assenblies.

The aforementioned corrective action has been completed.

If yoi have any questions concerning this matter, please contact me or Mr. Otto Maynard of my staff.

Yours very truly, 8410110231 840921 PDR ADOOK 05000482 N

S PDR GLK:bb xc: RCDeYoung PO'Connor f-HBundy

/0 201 N. Market - Wichita, Kanses - Mail Address: PO. Box 208 I Wichita, Kansas 67201 - Telephone: Area Code (316) 261-6451