IR 05000482/1986016

Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Rept 50-482/86-16

ML20210A172
Person / Time
Site:	Wolf Creek
Issue date:	09/05/1986
From:	Gagliardo J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Koester G KANSAS GAS & ELECTRIC CO.
References
NUDOCS 8609170094
Download: ML20210A172 (2)

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L!n'Riplf Refer To: , f Docket: STN 50-482/86 16 Kansas ' Gas and Electric Company ATTN: Glenn L. Koester Vice President - Nuclear P. O. Box 208 Wichita, Kansas 67201 Gentlemen:

Thank you for your letter of August 19, 1986, in response to our letter and Notice of Violation da'ted July 25, 1986. We have reviewed your reply and find it responsive to the concerns raised in our Notice of Violation. We will review the implementation of your corrective actions during a future inspection to detemine that full compliance has been achieved and will be maintained. ,

Sincerely, Original Signed Dy J. E. Ganilardo J. E. Gagliardo, Chief Reactor Projects Branch cc:

Kansas Gas and Electric Company ATTN: Otto Maynard, Manager of Licensing

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P.O. Box 309(SharpRoad)

l Burlington, Kansas 66839

Forrest Rhodes, Plant Superintendent

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! P. O. Box 309 1 Burlington, Kansas 66839 i-i Kansas Radiation Control Program Director

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N.S N.[,,0.'.' " August 19, 1986 Mr. E. H. Johnson, Director Division of Reactor Safety and Projects d bh U. S. Nuolear Regulatory Commission i '

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Region IV i 611 Ryan Plaza Drive, Suite 1000 [ y Arlington, Texas 76011

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KMLNRC 86-148 /

Re Docket No. STN 50-482 /

Subj: Response to Inspection Report STN 50-482/86-16

Dear Mr. Johnson:

This letter is written in reponse to your letter of July 25, 1986, which transmitted Inspection Report STN 50-482/86-16. As requested, the violation (482/8616-01) identified in the Inspection Report is being addressed in four parts.

(a) The reason for the violation if admitted; (b) The corrective steps which have been taken and the results achieved; (c) Corrective steps which will be taken to avoid further violations; and (d) The date when full compliance will be achieved.

Violation (482/8616-01): Failure To Adequately Isolate Safety-Related Equipment Prior To Maintenance Pinding:

Technical Specification (TS) 6.8.1 requires that, 'Mritten procedures uhall '

be established, implemented, and maintained covering . . . a. The applicable procedures recommended in Appendir A of Regulatory Guide (RG) f 1 33, Revision 2, February 1978."

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Section 9.a of RG 1 33, Revision 2, February 1978 states that, . . .

maintenance that can affect the perfomance of safety-related equipment should be properly proplanned and performed in accordance with written procedures, dooumonted instructions, or drawbgs appropriate to the circumstances.

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20t N Man st -Wctuta, Kansas - Mail Address: PO. Box 206 I WcMa, Kansas 6720t - Telephone: Area Code (3 t6) 26 t 645 t I _

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• ' Mr. E. H. J::hnxn August 19, 1986

KMLNRC 86-148 Page 2

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Contrary to the above, on June 19, 1986, maintenance activities being performed on ulve EN HV-15 in accordance with Work Request (WR) 07073-85 caused the unanticipated actuation of some engineered safety features components due to the failure to adequately isolate (i.e., preplan.the maintenance - motor de-energized) the valve motor prior to performing maintenance on it.

Reason For Violation If Admitted:

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This Engineered Safety Features equipment actuation was initiated by the inadvertent grounding of two rotor contacts while preventative maintenance was being performed on the isolation valve between the containment spray additive tank outlet and the "A" train of containment spray. Although the valve had been electrically isolated, the feedback signal to the Solid State Protection System actuated two slave relays when the rotor contacts were inadvertently grounded. Isolating the rotor contacts in this particular valve is not practical without creating additional potential for inadvertent Engineered Safety Peatures equipment actuation due to system design. The cause of this event was a cognitive personnel error by non-licensed utility personnel, who inadvertently grounded the rotor contacts.

Corrective Steps Which Have Been Taken and Results Achieved:

A training session has been held for electrical craftsmen to discuss this

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event and to identify the proper actions to be taken when working on this type of valve. A review was performed to identify other valves which have the potential for causing similar ESP actuations and twelve (12) such valves were identified.

Corrective Steps Which Will Be Taken To Avoid Further Violations:

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Procedure MPE E00P-02 is being revised to alert personnel to the extreme oaution necessary when working on this valve and twelve other valves which have been identified as having the potential for causing similar ESP actuations.

The Date When Pull Compliance Will Be Achieved:

Full compliance will be achieved by September 30, 1986.

Yours very truly,

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Olenn L. Koester Vice President - Nuclear OLK see 00: P0'Connor (2)

JCummir.s JTaylor

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