ML19350F140
| ML19350F140 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 05/22/1981 |
| From: | Carey J DUQUESNE LIGHT CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML19350F138 | List: |
| References | |
| IAL-81-16, NUDOCS 8106240259 | |
| Download: ML19350F140 (2) | |
Text
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May 22, 1981 United States Nuclear Regulatory Commission Office of Inspection and Enforcement Atta: Boyce H. Grier, Regional Director Region I 631 Park Avenue King of Prussia, Pennsylvania 19406
Reference:
Beaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 Immediate Actica Letter 81-16 Gentlemen:
In accordance with your letter dated May 7,1981, this is to inform you that planned action items 1 and 2 will not be accomplished durina the scheduled outage that was to occur in May,1981.
As you are aware, we agreed to shut down. Beaver Valley Power Station, Unit 1 during May, 1981 to complete certain modifications to the pressurizer code safety valve discharge line supports. Duquesne Light Company letter to the NRC dated May 6,1981 cited the importance of continued operation.
of Beaver Valley during the national coal strike and requested that the requirement to modify the supports on the pressurizer code safety valve discharge line be deferred until the second refueling. By letter dated May 12, 1981, the NRC granted this deferral and Duquesne Light Company cancelled the scheduled May,1981 outage. Since the national coal strike has not yet been settled, continued operation of Beaver Valley continues to be of great importance to reliable and economical supply of electric energy to our customers.
On April 7,1981, we indicated to the Senior Resident Inspector that modifications described in action items 1 and 2 of your letter dated May 7, 1981 would be completed at the next scheduled outage at which the plant could be brought to the proper configuration e.o perform the modifi-cations provided that vendors had delivered necessary hardware.
The next outage scheduled at that time was the outage scheduled to commence May 15, 1981.
810624O M
n nu Beaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 Innediate Action Letter 81-16 Page 2 The basis for continued operation prio'r to installing the modifications mentioned '.n ycur May 7, 1981 letter remains unchanged from that contained in our letter of April 6, 1981.
This letter presented an evaluation that was conducted of all valves with reach rod cperators used in safety related or RWD applications. We determined that none of the deficiencies that were found to exist in the course of the evaluation had any safety significance. Further, we determined that none of the incidents in which the 3 and 6 inch Velan check valves failed to properly seat has ever had any adverse effect on the safety of the public. -Additionally, those valves installed in the Event V configuration (WASH-1400) are tested in accordance with the Beaver Valley Power Station, Unit No.1 Technical Specifications to assure the valves are prcperly seated during all periods when the plant is operating.
We beheve that the additional actiont that have been taken and are described in our April 6, 1981 letter will effectively prevent recurrence of the incident. Delaying the installation of the proposed modifications until the second refueling outage does not pesent an undue risk to public health and safety.
Very truly yours, J. Carey Vice President, Nuclear cc.
D. A. Beckman, Resident Inspector United States Nuclear Regulatory Commission Beaver Valley Power Station Shippingport, PA 15077 United States Nuclect Regulatory Commission c/o Document Management Branch Washington, DC 20555