ML19312B804
| ML19312B804 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 04/20/1978 |
| From: | Thies A DUKE POWER CO. |
| To: | Case E Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19312B805 | List: |
| References | |
| NUDOCS 7911190585 | |
| Download: ML19312B804 (3) | |
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.j DcxE POWER COMPW(
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us Sotnx Cuenca Srazzr, CaAnz.ortz,N. C. nese A. C. THits L'P. o. Box 217e
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'* *a April 20, 1978 Ji m
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Mr. Edson G. Case, Acting Director
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Office of Nuclear Reactor Regulation 5
U. S. Nuclear Regulatory Commission
'4ashington, D. C.
20555 RE:
Oconee Nuclear Station Docket Nos. 50-269, -270, -287
Dear Mr. Case:
As stated in our letter of April 14, 1978, we are submitting a proposed revision to Section 3.3 of the Oconee Nuclear Station Technical Specifications.
The proposed revision incorporates a new Specification (3.3.8) requiring the operability of three HPI pumps for each unit during power operation above 60%
FP.
This requirement is incorporated as a result of the recent analysis of a postulated 0.04 square feet break at the pump discharge, which was performed assuming emergency core cooling flow by two HPI pumps during a certain phase of the postulated transient (reported by our letter of April 14, 1978).
The analysis further indicates that for operation at
~;elow 60% FP only a single train of high pressure injection system is needed provide the necessary core cooling in the event of such a loss of coolunt accident.
Attached are replacement pages of the Oconec Nuclear Station Technical Specifi-cations incorporating these proposed changes.
Pursuant to 10C7R50, 150.90, it is requestad that these proposed changes be approved.
It is pointed out that we are currently meeting the requirements contained in the proposed changes.
The proposed license amendments are considered to constitute one Class III amendment and two Class I amend =ents since they involve a single issure per-taining to three identical units.
Accordingly, the enclosed check in the amount of $4800.00 is remitted for the license amendment fee.
Very truly yours, pp,p, g&
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l A. C. Thies, Senior Vice President 3./ y.( p Production and Transmission g.
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Attachments' 73 ' : E 5
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April 20, 1978 Page Two 4
A. C. THIES, being duly sworn, states that he is Senior Vice President of Duke Power Company; that he is authorized on the part of said Company to sign and file with the Nuclear Regulatory Commission this request for amendment of the Oconee Nuclear Station Technical Specifications, Appendix A to Facility Operating Licenses DPR-38, DPR-47 and DPR-55; and that all statements and matters set forth therein are true and correct to the best of his knowledge.
M A. C. Thies, Senior Vice President Subscribed and sworn to before me this 20th day of April, 1978.
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Edna B. Farmer (Notarial Seal)
My Commission Expires:
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