ML17326B111
| ML17326B111 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 03/20/1984 |
| From: | Alexich M INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17326B112 | List: |
| References | |
| AEP:NRC:0745L, AEP:NRC:745L, NUDOCS 8403260002 | |
| Download: ML17326B111 (6) | |
Text
. REGULATORINFORMATION DISTRIBUTION @TEN (RIBS)
ACCESSION NBRe8403260002 DOG ~ DATEe 84/03/20 NOTARIZED:
NO DOCKET ¹ FACIL:50-3i5 Donald C.
Cook. Nuclear Power Planti Unit 1i Indiana 8
05000315 AUTH BYNAME*
AUTHOR AFFILIATION ALEXICHrM.P-,
Indiana tt Michigan Eil-ectric Co, RECIP,NAME RECIPIENT AFFILIATION DENTONiHNR ~
Office of Nuclear Reactor Regulationr Director1
SUBJECT:
Requests approval for use of encl new peaking;factor limit rept, for Cycle, 8'ept presumes target band of greater than or equal to 5% taiget axial flux difference, Rept'ithheld.y DISTRIBUTION >r>>I, t
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INDIANA 8 MICHIGAN ELECTRIC COMPANY P.O, BOX 16631 COLUMBUS, OHIO 43216 March 20, 1984 AEP: NRC: 0745L Donald C. Cook Nuclear Plant Unit No.
1 Docket-.No.- 50-315 L'icense'No.
'DPR 58 UNIT 1 CYCLE 8 PEAKING FACTOR LIMIT REPORT UPDATE Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555
Dear Mr. Denton:
By-this letter and its attachment, we request your approval for use of a new Peaking Factor Limit Report for Donald C. Cook Unit 1 Cycle 8, as described in Technical'pecification 4.2.2.2.c.
The V(Z) data in this new Peaking Factor Limit Report are not based on a new calculation.
Rather-,
the existing results from the previous calculation are specified in the form of a V(Z) for each of several burnup steps.
By comparison, the previous Peaking Factor Limit Report, submitted in letter AEP:NRC:0745H, dated August 31,
- 1983, showed one V(Z) function over the whole cycle; incorporating. the.aost limiting values from the individual burnup V(Z) s.
The new Peaking Factor Limit Report presumes a
target band of + 5X 'about the target axial flux difference.
This use of the more detailed Peaking Factor Limit Report is required, as quickly as possible, for Unit 1 to obtain full power operation.
The need to use the burnup dependent V(Z) data was discovered only after some time of Cycle 8 power operation, when we found a slight increase in the F
peaking factor above that which had been predicted.
The uae of butnup deIIendent V(Z) data has been reviewed by our reload fuel supplier, Westinghouse Electric Corporation, and has been shown not to exceed any safety limit, including those limits specified in 10 CFR 50.46 and 10 CFR 50 Appendix K.
On this basis we have-concluded that it's use"will'ot constitut'e an unreviewed safety question as defined in 10 CFR 50.59.
8403260002 840320','
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Hr. Harold R. Denton 2
0 AEP: NRC: 0745L
- This. document-has.been
-prepared following Corporate procedures= which incorporated a reasonable
-set -of controls to.insure its accuracy and completeness prior to signature by the undersigned.
Very truly yours, fl p
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~ Ale ich ice President cc: John E. Dolan -
Columbus'.G.
Smith, Jr. - Bridgman R.C. Callen G. Charnoff E.R. Swanson, NRC Resident Inspector - Bridgman
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