ML20196C401

Forwards Rev 1 to Cooper Nuclear Station COLR Cycle 19. Licensee Discovered That COLR Submitted with Contained Incorrect Max Average Planar Linear Heat Generation Rate Curves Specified in Figures 1 to 4

ML20196C401
Person / Time
Site:	Cooper
Issue date:	11/20/1998
From:	Swailes J NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20196C404	List: ML20196C401 ML20196C424
References
NLS980190, NUDOCS 9812020046
Download: ML20196C401 (3)

Text

. -

l

.. h

. . N Nebraska Public Power District

)

Nebraska's Energy leader i NLS980190 1 November 20,1998 )

i U.S. Nuclear Regulatory Commission Attention: Document Control Desk J Washington, D.C. 20555

Subject:

Core Operating Limits Report i Cooper Nuclear Station NRC Docket No. 50-298, DPR-46

Reference:

1. Letter NLS980170 to Document Control Desk (USNRC) from J. H. Swailes (NPPD) dated October 19,1998, " Core Operating Limits Report, Cooper Nuclear Station, NRC Docket No. 50-298, DPR-46."

Gentlemen:

By letter dated October 19,1998 (Reference 1), the Nebraska Public Power District (District) '.

submitted the Core Operating Limits Report (COLR) for Cycle 19 operation at the Cooper Nuclear Station. The District has discovered that the COLR submitted with Reference 1 contains the incorrect maximum average planar linear heat generation rate curves specified in Figures 1 to 4. Also, in Section 2.1, " Rod Block Monitor Upscale Set Point,"(IPSP5P511 PSP) and (IIPSPsP) should have read as (IPSP<PsilPSP) and (HPSP<P), respectively. The District has //

updated Section 2.4," Minimum Critical Power Ratio Limits," to include a discussion of single /r recirculation loop operation, turbine bypass system response, and scram time dependent minimum critical power ratio. Accordingly, the revised COLR is being submitted as an attachment. In accordance with 10 CFR 50.4 (b)(1), we are also transmitting a copy of this revised COLR to the Regional Office and to the NRC Resident inspector.

(f;j Should you have any questions or comments, please contact me.

Sincerely, on e

P/

ai qs ident of Nuclear Energy

/ -  :

9812020046 981120 PDR ADOCK 05000298 wuper Nudear Station PO. Box 98/ Brownville. NE 683210098 Telephone: (407) 825-3811/ Fax: (402) 825 5211 http //www.nppd.com

Y NLS980190 November 20,1998 Page 2 of 2

• /rss

• Attachment cc: Regional Administrator w/ attachment USNRC Region IV NRC Resident inspector w/ attachment Cooper Nuclear Station Project Manager - Cooper w/ attachment USNRC-NRR NPG Distribution w/o attachment s-

{

0

• ATTACHMENT 3

, l LIST OF NRC COMMITMEMTS l

Correspondence No:NLS990190 The following table identifies those actions committed to by the District in this document. Any other actions discussed in the submittal represent intended or planned actions by the District. They are described to the NRC for the NRC's information and are not regulatory commitments. Please notify the NL&S Manager at Cooper Nuclear Station of any questions regarding this document or any associated regulatory commitments.

COMMITTED DATE ,

COMMITMENT OR OUTAGE None  !

b l

l l

l i

I d

i l PROCEDURE NUMBER 0.42 l FEVISION NUMBER 6 l PAGE 9 OF 13 l