ML20141M044
| ML20141M044 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 03/25/1992 |
| From: | Zach J WISCONSIN ELECTRIC POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| CON-NRC-92-038, CON-NRC-92-38 IEB-88-011, IEB-88-11, TAC-M72155, TAC-M72156, VPNPD-92-138, NUDOCS 9203310243 | |
| Download: ML20141M044 (3) | |
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pa Wisconsin Elecinc POWER COMPArn at w Menwn to u xw1Mwuw vmm im12212x VPNPD-92-138 NRC-92-038 March 25, 1992 U.
S.
NUCLEAR REGULATORY COMMISSION Document Control Desk-Msil Station F1-137 Washington, D.
C.
20555 Gentlemen:
LX)CKETS 50-266_AND_53-2Al PROGRAE STATUS UPDtTE t
D)}t CORPLETION OF ACTION ITEM 1.d OF FRC IE BULLETIN 88-11 iT&QS #72155 R{Dfj7jL15.6)
POINT BEACH NUCL, EAR PLANT. UNITS 1 AND 2 In a letter dated December 19, 1991, (see Attachment, Reference 6), Wisconsin Electric Power Company (WE) notified the Nuclear Regulatory Comzission (NRC) that we had completed an operating history records search at Point Beach Nuclear Plant (PBNP).
We identified occurrences wha.re PBNP had exceeded the 210*F limit for heat-up and cool-down procedutes as assumed in the Westinghouse Owners Group (WOG) generic detailed plant analysis.
Our letter' concluded by stating that we would contact the NRC following our evaluation of the effects of the worst ease temperature outlier.
During a telephone conference between Mr. Robert Samworth and WE on February 20, 1992, we informed the NRC that Sargent and Lundy l
had completed the evaluation incorporating the worst caso temperature.
The evaluation utilized the conservative WOG detailed plant-specific analysis input methodologies and resulted in not satisfying code stress allowables for Equation 12 at a long radius elbow.
However, we concluded that we would be able to demonstrate code compliance by refining and/or removing conservatisms in the plant-specific analysis input.
During the telephone conference with Mr. Samworth, we indicated that we were evaluating proposals to reanalyze our surge-lines to j-account for these temperature outliers, and that we-would int um the NRC by letter of one new schedule for completion of the Bulletin-reporting requirements.
We intend to award a contract to 'a consulte.nt to perforn further plant-specific analyses.
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HRC Docuinont Control-Desk
. March-25,'1992
- Page 2 analyses are scheduled to begin in Apri' 1992 and be colapleted by the end of November 1992.
We, therefore, expect to completu the Hulletin-reporting requirements by November 30, 1992.
Wo-would be pleased to discuss this with you at your convenience.-
Please_ contact us if you have any questions concerning our proposed actions in this nanner.
Sincerely, hl 2A.&
J4(.td Jane Zach Vice President Nuclear Power Attachment copies.to NRC Regione.l Administrator, Region III NRC Resident-Inspector Subscribed and'uworn to$o before me this ?Y ( Qay o' ) L y 1992.
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A%g 2C100 fM Notary Public, Statie of Wisconsin
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Attachment
References:
1)
Wisconsin Electric Power Company Letter VPNPD-89-314 dated 05/31/89 to NRC on the subject of "Subtaittal of Justification f or Continued Operation Regarding-Pressarizer Thermal. Stratification, Point Beach Nuclear Plant Units, 1 and 2."
2)
Letter from NRC to C.
W.
fly dated 09/25/90 on the subject of "NRC Bulletin. No.
8' 11, J
Pressurizer surge Line Thermal Stratification - Evaluation of WOG Bounding Analysis (TACs 72155 and 72156)."
3)
Wisconsin Electric Power Company Letter VPNPD-90-490 dated 12/18/90 to NRC on the subject of
" Request for Extension of Analysis Completion Data per Item 1.d of NRC IE Dulletin 38-11."
4)
Wisconsin Electric Power Ccmpany Letter VPNPD-91-184 dated 06/07/91 to NRC on the subject of
" Plant Specific Thermal Stratification Analysis Results and Completion Date Extension F
Request for Completion or Action Item 1.d of NRC IE Bulletin 88-11."
5)
United States Nuclear Regulatory Commission Letter (Docket Nos. 50-266, and 50-301) dated 08/16/91 to Wisconuin Electric Power Company on the subject of " Pressurizer Surgc Line Thermal Stratification,Bulletin 88-11 (TAC Nos. 72155 and 72156) 6)
Wisconsin Electric Power Company Letter VPNPD-91-452 dated 12/19/91 to NPC on the subject of
" Program Status Update and Extension P< Juest for Completion of Action Item 1.d of HRC IE Bulletin 83-11."
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