ML20078Q503
| ML20078Q503 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 10/31/1983 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20078Q502 | List: |
| References | |
| TAC-49082, NUDOCS 8311110285 | |
| Download: ML20078Q503 (2) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION 7,
,E WASHINGToM, D. C. 20555
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. SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR' REGULATION
- RELATED TO AMENDMENT'NO. 35 TO FACILITY OPERATING LICENSE (10. NPF-2 i
ALABAMA POWER COMPANY JOSEPH M. FARLEY NUCLEAR PLANT, UNIT NO. 1 DOCKET NO. 50-348
-INTRODUCTION By letter dated June 17, 1983, supplemented on July 8, 1983, Alabama Power, Company (APCo) requested a one-time change to Paragraph 4.7.9a of the Technical Specifications for the Joseph M. Farley Nuclear Power Plant Unit 1 (farley 1). The change will permit Farley 1 to extend its visual inspection period for all inaccessible hydraulic snubbers to the fifth refueling outage unless an outage of sufficient duration occurs sooner. Our evaluation follows.
DISCUSSION AND EVALUATION While conducting a visual inspection of inaccessible hydraulic snubbers during the fourth refueling outage, APCo discovered two inoperable hydraulic snubbers, MS5-R168 and CVC-R451. As the result of this inspection, Technical Specification 4.7.9a requires that the subsequent inspection period be reduced to six months t25%, which implies that the subsequent inspection must be performed by November 1,1983. The fifth refueling outage is scheduled to start on or about January 24, 1984..
The purpose of visual inspection on hydraulic snubbers is to identify inoperable snbbbers and determine the cause of their failure mode. A shortened inspection schedule should be implemented when the inoperability is caused by a generic ngchanism, such as design or manufacturing deficiences, degradation due to service, etc. The shortened schedule is required because similar inoperabilities of the remaining snubbers are likely to happen in the near future which could jeopardize the plant's operating safety. Such deficiencies should be discovered on a timely 1
basis.
If the inoperability is caused by isolated reasons, the repeatability of such inoperabilities need not be considered.
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The two snubbers at Farley I were found to be inoperable due.(1) to an error made by the inspection personnel which caused the loss of fluid in one snubber, and (2) to an external mechanical interference which was found 6n the other snubber. Both snubbers were repaired and retested satisfactorily. These failures can be considered to be isolated events and are not likely to happen again.
- SUMARY l
Based on our review of APCo's request andl.the aboveJdiscussion, the staff finds that the extension request is reasonable and acceptable on a one-time basis.
83'11110285 831031 i -
2-i The subsequent inspection of all inaccessible snubbers shall be perform'ed during the fifth refueling outage unless an outage of sufficient duration
' occurs sooner..
Environmental Consideration We have determined that the amendment does not authorize a change in effluent types or total amounts nor an increase in power level and will not result in ary significant envi.ronmental impact. Having made this determination, we have further concluded that the amendment involves an action which is insig-nificant from the standpoint of environmental impact and, pursuant to 10 CFR 551.5(d)(4), that an environmer.tal impact statement or negative declaration and environmental impact appraisal need not be prepared in connection with the issuance of this amendment.
Conclusion We hate concluded, based on the considerations discussed above, that:
(1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (2) such activitics will be conducted in compliance with the Commission's regulations and the issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public.
Date: October 31, 1983
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i Principal Contributor:
H. Shaw l
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