ML20082F211

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Requests Inclusion of Valve Internal Insps in 830826 Exemption Request from Section XI of ASME Code Requirements
ML20082F211
Person / Time
Site: Prairie Island Xcel Energy icon.png
Issue date: 11/14/1983
From: Musolf D
NORTHERN STATES POWER CO.
To:
Office of Nuclear Reactor Regulation
References
OPR-42, TAC-52405, NUDOCS 8311280471
Download: ML20082F211 (2)


Text

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Northem States Power Company 414 Nicollet Mall

%nneapons. Minnesota 55401 Telepnone (612) 330 5500 November 14, 1983 Director Office of Nuclear Reactor Regulation U S Nuclear Regulatory Commission Washington, DC 20555 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket No. 50-282 License No. DPR-42 Supplement to Request for Schedule Extension First Ten-Year ISI/IST Program On August 26, 1983 we submitted, for NRC Staff review and approval, a request for exemption from Requirements of Section XI of the ASME Code related to our program of inservice inspection at the Prairie Island Nuclear Generating Plant. The requested exemption related to the schedule for conducting certain ten-year inspections in Unit No. 1. The purpose of this letter is to modify the request contained in our August 26, 1963 letter to include two additional inspections which require schedule relief.

Our original request included schedule relief for items 31.1 through Bl.4, Bl.6, 31.9, Bl.12, 31.14, 31.15, Bl.17, Bl.19 and 34.1 as well as the ten-year hydrotests specified on page 1.2.1 of our program manual.

We ask that this request be expanded to include the following two additional inspections:

B6.7, RHR Take Of f, valve body interior inspection B6.7, RHR Return, valve body interior inspection D; ring review of our inspection plan for the next Unit I refueling outage, it was realized that core of fload will be necessary to prudently conduct these valve internal inspections. The RHR system must be available for core cooling. Core of fload is scheduled for the 1985 refueling outage as detailed in our August 26, 1983 letter. It should be noted that all other 36.7 inspections will be completed in accordance with the code and that a schedule exemption is needed only for these two valves.

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0311280471 031114 '

PDR ADOCK 05000282 O G PDR I

, . 's NORTHERN STATES POWER COMPANY Dir of NRR November 14, 1983 Page 2 According, we ask that our August 26, 1983, request be revised to include

'the v:1ve internal inspections ncted above.

Please contact us if you have any questions related to our request.

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David Musolf Manager - Nuclear Suppor Services DMM/js cc: Regional Administrator-III NRR Project Manager, FRC Resident Inspector, NRC G Charnoff