ML20091P536
| ML20091P536 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 01/15/1992 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20091P534 | List: |
| References | |
| GL-90-09, GL-90-9, NUDOCS 9202030155 | |
| Download: ML20091P536 (2) | |
Text
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SAFETY EVALUATION BY Tile OFFICE OF NUCLEAR REACTOR REG _U_LATION RELATED TO AMENDMENT NOS.156 AND 129 TO FACILITY OFERATING LICE: IE N05. DPR-51 AND NPF-6 ENTERGY OPERATIONS, INC.
ARMN4SAS NUCLEAR ONE, UNIT HOS 1 AND 2 DOCKET NOS. E0-313 AND 50-368
1.0 INTRODUCTION
By "0CAN109102, Application for Amends to Licenses DPR-51 & NPF-6,revising Tech Specs to Add NRC Std OL Conditions for Fire Protection & Relocating Fire Protection Requirements from Tech Specs to Sars,Per [[generic letter" contains a listed "[" character as part of the property label and has therefore been classified as invalid. & 88-12|letter dated October 15, 1991]] Entergy Operations, Inc. (the licensee) submitted a request for changes to the Arkansas Nuclear One, Unit Nos.1 and 2 (ANO-1&2), lechnical Specifications (TS).
The requested changes would revise ANO-1 TS 3.16 and 4.16 and ANO-2 TS 3/4.7.8 by replacing the existing snubber visual inspection schedules anc the surveillance requirements for visual acceptance cr4eria in accordance with the intent of NRC Generic Letter (GL) 90-09.
2.0 EVALI% TION The snubber visual examinatico schedule in the existing TS is based on the pemissible number of inoperable snubbers found during the visual examination. Because the existing snubber visual examination schedule is based only on the absoluto number of inoperable snubbers found during the visual examinations irrespective of the total population of snubbers, licensees with a large snubber population find the visual inspection schedele excessively restrictiva. The purpose of the alternative examination schedule is to allow the licensee to perform visual examint.tions and corrective actions during plant outages without reducing the confidence level provided by the existing examination schedule.
The new visual examination schedule specifies the pennissible number of inoperable snubbers for various snubber populations.
The basic examination interval is the normal fuel cycle up to 24 months.
Dependi.ig on the number of unacceptable snubbers found during the visual examination, this interval may be extendcd to as long as twice the 'uel cycle or reduced to as short as two-th;rds of the fuel cycle. The examinatien interval may vary by plus or minus 25 percent to make the examination coincide with the actusi outage.
examination, the Limiting Conditions for Operation (perable during a visual In the event that one or more snubbers are found ino LCO) in the present TS require the licensee to restore or replace the inoperable snubber (s) to operable status within 7' hours or declare the attached system inoperable and i
follow the appropriate action statement for that system. This LCO will remain in the TS; however, the permissible nmber of inoperable srubbers and the subsequent visual examination interval will now be determined in accordance I
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-2 wit" the new visual examination schedule (Table 1 of GL 90-09 dated Decerter 11,1990). As noted in the guidance for this line item TS improvement, certain ccrrective actions may have to be performed, i
depending on the number of inoperable snubbers found.
All requirements for corrective actions and evaluations associated with the use of the visual examinatic, schedule and stated in Footnotes 1 through 7 (Table 1-of GL 90-09) shall be included in the TS.
i The licensee has proposed changes to ANO-1 TS 3.16 and 4.16 and ANO-2 TS 3/4.7.8 that are consistent with tue guidance provided in GL 90-09 for the replacement of the snubber visual examination schedule with Table 1 ('ncluding Footnotes 1 through 7) of GL 90-09. On the basis of its review of this matter, the staff finds that the proposed changes to the TS for ANO-1&2 are acceptable.
3.0 STATE CONSULTATION
in accordance with the Commission's regulations, the Arkansas State official was notified of the proposed issuance of the amendment. The State official had no comment.
4.0 ENVIRONMENTAL CONSIDERATION
The amendments involve changec in surveillance requirements, but there is no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and there is no significant j
increase in individual or cumulative occupational radiation exposure. The Commission has previously issued a proposed finding that the amendments involve no significant hazards consideration and there has been no public coment en 1
such finding (56 FR 60116). Accordingly, the amendments meet the eligibility crite-ia for catecorical exclusion set forth in 10 CFR 51.22(c)(9). Pursuant to 10 CFR 51.22(b) no environmental impact statement or environmental assessment need b't prepared in connection with the issuance of the amendments.
5.0 CONCLUSION
l The Comission has concluded, based on the considerations discussed above, thet:
(1) there is reasonable assurance that the health and safety of the public wil; not be endangered by operation in the proposed manner, (2) such l
activities will be conducted in compliance with the Commission's regulations, I
and (3) the issuance of the arrendments will not be inimical to the comon defense and security or to the health and safety of the public.
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Principal Contributor:
R. Twigg l
l Date: January 15, 1992 l
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