ML20133N490

Forwards RAI Re TS Change Request to Change ESF Actuation Sys Instrumentation Action Statement

ML20133N490
Person / Time
Site:	Wolf Creek
Issue date:	01/21/1997
From:	Stone J NRC (Affiliation Not Assigned)
To:	Carns N WOLF CREEK NUCLEAR OPERATING CORP.
References
NUDOCS 9701230313
Download: ML20133N490 (4)

Text

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January 21', 1997 / ' *-

Mr. Neil S.'Carns '

President and Chief Executive Officer '

Wolf Creek Nuclear Operating Corporation Post Office Box 411 -

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Burlington, Kansas 66839

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - TECHNICAL. SPECIFICATION CHANGE REQUEST TO RFVISE THE ACTION STATEMENT FOR THE RWST LEVEL - LOW-LOW COINCIDENT WITH SAFETY INJECTION INSTRUMENTATION, WOLF CREEK GENERATING STATION.(TAC NO. M97361)

Dear Mr. Carns:

By letter dated December 3,1996, Wolf Creek Nuclear Operating Corporation-proposed to change an engineered safety features actuation system instrumentation Action Statement in the Wolf Creek Generating Station

• Technical Specifications (TS). Specifically, Item 7.b., RWST Level - Low-Low Coincident with Safety Injection, in TS Table 3.3-3 would be changed to reference Action 28 rather than Action 16. To facilitate the staff's review  !

additional information is requested. The requested information is detailed in '

the enclosure. In order for the staff to maintain their review schedule, please respond within 30 days of receipt of this letter.

Sincerely,  !

Original Signed By  !

James C. Stone, Senior Project Manager Project Directorate IV-2 Division of Reactor Projects III/IV >

Office of Nuclear Reactor Regulation Docket No. 50-482 )lSTRIBUTLON:

E)ocket-Fi'e EPeyton

Enclosure:

Request for Additional PUBLIC WBateman Information PDIV-2 Reading JStone JRoe ACRS cc w/ encl: See next page EGAl JWermiel, 08-H OGC -JDyer, RIV

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DATE 1/16/97 Ifh /97 ,

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NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2006Ho01 k . . . . . p# January 21, 1997 Mr. Neil S. Carns President and Chief Executive Officer l Wolf Creek Nuclear Operating Corporation l Post Office Box 411 Burlington, Kansas 66839

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - TECHNICAL SPECIFICATION CHANGE l REQUEST TO REVISE THE ACTION STATEMENT FOR THE RWST LEVEL - LOW-LOW COINCIDENT WITH SAFETY INJECTION INSTRUMENTATION, WOLF CREEK GENERATING STATION (TAC NO. M97361)  ;

Dear Mr. Carns:

By letter dated December 3,1996, Wolf Creek Nuclear Operating Corporation proposed to change an engineered safety features actuation system instrumentation Action Statement in the Wolf Creek Generating Station Technical Specifications (TS). Specifically, Item 7.b. , RWST Level - Low-Low Coincident with Safety Injection, in TS Table 3.3-3 would be changed to reference Action 28 rather than Action 16. To facilitate the staff's review additional information is requested. The requested information is detailed in the enclosure. In order for the staff to maintain their review schedule, 1 please respond within 30 days of receipt of this letter.

Sincerely, Y.ok%%(M .&

James C. Stone, Senior Project Manager Project Directorate IV-2 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket No. 50-482

Enclosure:

Request for Additional Information cc w/ enc 1: See next page

i 1

i Mr. Neil S. Carns January 21, 1997 cc:

Jay Silberg, Esq. Vice President Plant Operations Shaw, Pittman, Potts & Trowbridge Wolf Creek Nuclear Operating Corporation 2300 N Street, NW P. O. Box 411 Washington, D.C. 20037 Burlington, Kansas 66839 Regional Administrator, Region IV Supervisor Licensing U.S. Nuclear Regulatory Commission Wolf Creek Nuclear Operating Corporation 611 Ryan Plaza Drive, Suite 1000 P.O. Box 411 Arlington, Texas 76011 Burlington, Kansas 66839 Senior Resident Inspector U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Commission Resident Inspectors Office P. O. Box 311 8201 NRC Road Burlington, Kansas 66839 Steedman, Missouri 65077-1032 Chief Engineer Supervisor Regulatory Compliance Utilities Division Wolf Creek Nuclear Operating Corporation Kansas Corporation Commission P.O. Box 411 1500 SW Arrowhead Road Burlington, Kansas 66839 Topeka, Kansas 66604-4027 Office of the Governor State of Kansas Topeka, Kansas 66612 Attorney General Judicial Center 301 S.W. 10th 2nd Floor Topeka, Kansas 66612 County Clerk Coffey County Courthouse Burlington, Kansas 66839 Public Health Physicist Bureau of Air & Radiation Division of Environment Kansas Department of Health and Environment Forbes Field Building 283 Topeka, Kansas 66620

. ENCLOSURE i l

)

RE0 VEST FOR ADDITIONAL INFORMATION i i

, WOLF CREEK NUCLEAR OPERATING CORPORATION  !

! i WOLF CREEK GENERATING STATION DOCKET NO. 50-482 l The December 3,1996, submittal proposed that the action statement for Item 7.b., Refueling Water Storage Tank (RWST) Level - Low-Low Coincident with Safety Injection Instrumentation, in Technical Specification (TS) Table 3.3-3,

, be changed from Action 16 to Action 28. Action 16 states that "one additional channel may be bypassed for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> for surveillance testing" whereas  :

Action 28 states that "the inoperable channel may be bypassed for up to 4 l hours for surveillance testing of other channels." It was indicated that Wolf i Creek Generating Station (WCGS) does not have the capability to test, on a routine basis, an. analog instrumentation channel with the channel in a bypass condition. Therefore, the Item 7.b. instrumentation channels do not have the design for operation or testing in bypass needed for Action Statement 16 to be ,

applicable.  !

The staff approved Westinghouse Topical Report WCAP-10271, Supplement 2 and WCAP-10271, Supplement 2, Revision 1 by Safety Evaluation Report (SER) dated 1 February 22, 1989. Enclosure 2 of the staff's SER provided an acceptable '

format for proposed changes based on WCAP-10271, Supplement 2. As shown in Enclosure 2, functional unit 7.a., RWST Level - Low, references Action 17 which is the same as Action 16 in the TS for WCGS. In addition, the staff notes that the action statement for the RWST Level - Low-Low Coincident with Safety Injection Instrumentation in the new Westinghouse Owners Group Standard TS (STS), NUREG-1431, Revision 1, is also similar to Action 16 in that it states "one additional channel may be bypassed for up to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> for surveillance testing."

Please provide additional justification for the use of Action Statement 28 rather than Action Statement 16. Specifically, justify the use of a different action statement for RWST Level - Low-Low instrumentation than that shown in

Enclosure 2 of the staff's SER and in the new Westinghouse STS. In your response, please include a description of the plant-specific characteristics that result in the action statement given in Enclosure 2 of the staff's SER not being applicable to WCGS.