ML19312B834
| ML19312B834 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 05/06/1977 |
| From: | Parker W DUKE POWER CO. |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19312B835 | List: |
| References | |
| NUDOCS 7911250046 | |
| Download: ML19312B834 (4) | |
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Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Re: Oconea Nuclear Station Docket Numbers 50-269, -270, -287
Dear Sir:
Amendment Nos. 33, 33 and 30, to Oconee Facility Operating Licenses DPR-38,
-47 and -55 were issued on October 13, 1976.
These amendments provided Technical Specification Limiting Conditions for operation on hydraulic shock suppressors, as well as revised surveillance requirements.
Speci-fication 4.18.4 required that the initial inspection be performed within six months from the date of issuance of the Specifications, and for the purpose of establishing an inspection interval, it was assumed that the facility had been on a six month inspection interval.
The initial Oconee 2 inspection was performed on December 20, 1976, during a unit outage. During this inspection, 4 suppressors in the " inaccessible during normal operation" group were determined to be inoperable; therefore, the next inspection interval was determined to be 4 months + 25%.
Since the initial inspection, Oconee 2 has been operating essentially continuously and no further inspections have been conducted. Currently, the last date permitted by Technical Specification for hydraulic shock suppressor sur-veillance is May 22, 1977.
Currently, with the expected op'eration of Oconee 1 and 2, both of these units could have overlapping refueling schedules.
This is not considered advantageous from either a system load nor a station workload consideration.
It is presently planned to refuel Oconee 1 first and Oconee 2 second.
In order to accomplish this, a short outage will be conducted on Oconee 2 in late May, 1977, to perform a hydraulic shock suppressor surveillance as well as several other maintenance items.
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'Dirgetsr 0ffico of Nuclsir R;rctor Rigulttion Page 2 However, in order to provide for the contingency of an unexpected Oconee 1 forced outage, plans are also being made for a shortened Oconee 2 cycle which will permit the Oconee 2 refueling to be conducted first.
If this contingency should occur, the outage for hydraulic shock suppressor sur-veillance would be inappropriate due to the time necessary to provide access to containment and to cool down the plant to permit personnel access.
Pursuant to 10CFR50, Section 50.90, a revision to the Oconee Nuclear Station Technical Specifications is requested which will revise the requirements of Specification 4.18 for Oconee 2 until June 19, 1977.
This proposed revision is indicated on the attached Technical Specifica-tion replacement page.
It is considered that this relatively short extension of the surveillance interval will not adversely affect the operation of the piping support and restraint system, and will not affect the health and safety of the public.
Very truly yours, s/ William O. Parker, Jr.
William O. Parker, Jr.
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'fay 6, 1977 Pcg3 2 WILLIAM O. PARKER, JR., being duly sworn, states that he is 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 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.
s/ William O. Parker, Jr.
William O. Parker, Jr., Vice President Subscribed and sworn to before me this 6th day of May, 1977.
s/Edna B. Farmer Notary Public My Commission Expires:
October 24, 1977 l