ML19351A058

Requests Tech Spec Changes,Authorizing Extension of Max Average Planar Linear Heat Generation Rate Curves to 40,000 Mwd/T.Proposed Change Temporary Pending Reconciliation of Enhanced Fission Gas Issue

ML19351A058
Person / Time
Site:	Cooper
Issue date:	06/16/1981
From:	Pilant J NEBRASKA PUBLIC POWER DISTRICT
To:	Ippolito T Office of Nuclear Reactor Regulation
References
LQA8100196, NUDOCS 8106250170
Download: ML19351A058 (3)

Text

.~

~

GENE R AL, OFFICE Nebraska Public Power District ~" fc1*c%'nE7&J'a!%^>"^ " '

LQA8100196 4 June 16,1981 O b a eel [lf ,2

.' kN 2 <1 ggg k Director, Nuclear Reactor Regulation Attention: Mr. Thomas A. Ippolito, Chief

\ Mgr ,b h.

Operating Reactors Branch No. 2 g Division of Licensing U.S. Nuclear Regulatory Commission

~

? 6 @/

Washington, DC 20555

Subject:

Proposed Changes to Technical Specifications Cooper Nuclear Station NRC Docket 50-298, DPR-46

Reference:

-1) Amendment No. 67 to Facility Operating License No. DPR-46 dated January 30, 1981 In accordance with the provisions specified in 10CFR50.90, Nebraska Public Power District requests that the Technical Specifications for Cooper Nuclear Station be revised to incorporate the changes described below.

The District's submittal which resulted in Amendment No. 67 (Reference 1) requested MAPLHGR curves extended to 40,000 MWD /t. Since the staff had not decided on a resolution of the enhanced fission gas issue, penalties were imposed to operate beyond 30,000 MWD /t. To date, this issue has still not been resolved by the staff, and since some fuel at Cooper Nuclear Station has exceeded 30,000 MWD /t, the District is constrained to request the following temporary change to the Techni ,al Specifications:

1. Figures 3.11-1.3 and 3.11-1.4, page 211a:

Revise the 8 x 8 fuel bundle MAPLHGR limits to allow exposure up to 36,000 MWD /t. The note on page 211a should read as follows: Operation at planar average exposures above 30 x 103 mwd /t and limited to 36 x 103 mwd /t permitted for the remainder of cycle 7 if MAPLHGR limits reduced as follows: ,

Exposure mwd /t x 103 30 32 34 36 Reduction in MAPLHGR % 9.0 12.5 16.25 20.5 Operation beyond cycle 7 limited to 30,000 mwd /t.

8106250/ M [

W - r - -

e , e

c Mr. Thomas A._ Ippolito Pcg] Two

June 16,-.1981-

- Higher exposure rates were generated using NEDO-24045 " Loss-of-Coolant : Accident Analysis - Report . for Cooper Nuclear - Station."

This proposed revision incorporates the same penalty introduced in the Safety Evaluation, Enclosure 2 to Reference 1.

The-safety significance of this proposed change has been reviewed by appropriate District personnel, and under 10CFR170, is judged to be a Class II Ate amendment. However, this proposed change, which is an extension -of Amendment No. 67 to cover cycle 7

- operations, is temporary in nature, pending the reconciliation of the enhanced fission gas issue. Therefore, no payment is enclosed.

Should you have any questions or require additional information, please contact me.

In addition to three signed originals, 37 copies are also enclosed. ,

Sincerely, M

.L Pjlant -

Director of Licensing and Quality Assurance s

-JMP/kcw:bn16/11 Enclosure t

e s

l k- - -

_ - , _ . , o,- , ,

4

gc ...;

Mr. Thomas .Ippolito

'.. Pag 2 Three

June 16,1981.

STATE OF NEBRASKA)

)ss

' PLATTE COUNTY. .) .

. Jay M. Pilant, being first duly sworn, deposes and says that he is an authorized representative of the Nebraska Public Power District,' a public corporation and political subdivision of the State

' of Nebraska; that he is duly authorized to submit this request on

~ behalf on Nebraska' Public Power District; and that the statements in said application-are true to the best of his knowledge and belief.

I/ M4 QM1 Pflant Subscribed 4p my presence and' sworn to before me this1,2 day of

( f//frz ,1981.

/

GC.u.;L L ':.Y 51% chtbrubl sf //_/( o. - l ' M7

- JAf1lE THOMA0 g' NOTARY PUBLIC m3119_ My Com. Exp. Sept 1,1982 My Commission expires e 18&fht/2 ///h .

l l

b_