ML20137Y738

Withdraws Request for Authorization to Utilize ASME Boiler & Pressure Vessel Code N-521,during Plant Third Ten Year ISI Interval

ML20137Y738
Person / Time
Site:	Prairie Island
Issue date:	04/15/1997
From:	Sorensen J NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9704230201
Download: ML20137Y738 (2)

Text

._

a Northern States Power Company Prairie Island Nuclear Generating Plant 1717 Wakoneda Dr. Eest  !

Welch, Minnesota 55089 l

l l

l April 15,1997 10 CFR Part 50 Section 50.55(a)

U S Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket Nos. 50-282 License Nos. DPPs-42 l 50-306 DPR-60 i

Withdrawal of the Request for Authorization to Utilize ASME Boiler & Pressure Vessel Code Case N-521 l i

We had previously requested authorization to utilize ASME Boiler and Pressure Vessel Code Case N-521, " Alternative Rules for Deferral of Inspections of Nozzle-to-Vessel l Welds, inside Radius Sections, and Nozzle-to-Safe End Welds of a Pressurized Water Reactor (PWR) Vessel, Section XI, Division 1", during the Prairie Island Third Ten Year  !

Inservice Inspection interval for both Units 1 and 2. By this letter we withdraw our I request for authorization, in its entirety, since we cannot meet certain conditions i established by NRC policy. I Because we are withdrawing the request, we are required to perform examinations of the nozzles during the current (first) period of the third intervc! for both units. Since the current periods (as currently scheduled) would expire prior to the next scheduled refueling outages, we are extending each unit's first pericd to its next refueling outage.

Each of these extensions will be less than one year, in this letter we have made no new Nuclear Regulatory Commission commitments. p 9704230201 970413 0

'. PDR ADOCK 05000282 O PDR _ {

lk!hllllkllljllljl!%

. v USNFlO NORTHERN STATES POWER COMPANY

' April 15,1997 Page 2 I

Please contact Jack Leveille (612-388-1121, Ext. 4662) if you have any questions l related to this letter. l I

Joel P Sorensen Plant Manager Prairie Island Nuclear Generating Plant 1

l c: Regional Administrator - Region 111, NRC i Senior Resident inspector, NRC I NRR Project Manager, NRC J E Silberg i

i I

l I

N-52196. DOC

, _.. _.