ML17328A440
| ML17328A440 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 09/06/1990 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML17328A439 | List: |
| References | |
| NUDOCS 9009130069 | |
| Download: ML17328A440 (3) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 SAFETY EVALUATION-BY7HE.OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT.N0.149-TO.FACILITY.OPERATING LICENSE NO. -DPR-58 INDIANA.MICHIGAN POWER COMPANY DONALD C..COOK NUCLEAR PLANTi-UNIT NO..I DOCKET N0.-50-315 1.0
2.0 INTRODUCTION
By letter dated February 9, 1990, Indiana Michigan Power Company (the licensee) reouested approval of an aII;endwent to the D. C. Cook, Unit 1 Technical Specifications (TS).
The proposed amendment would change TS 3/4.7.8, "Snubbers,"
to provide a one-time extension of the required interval for visual inspection of 46 inaccessible snubbers.
The inspection interval would be extended until the end of the Cycle 11 refueling outage, which is scheduled to begin on approximately October 12, 1990.
EVALUATION The licensee is presently on a 12-month iIiterval for snubber inspection due to the failure of one snubber during the previous inspection, performed on June 12, 1989.
TS 3/4.7.8 permits that the inspection schedule be extended by 25 percent, which would require that the inspections be perforrred by September 11, 1990.
Because of the irIaccessibility of 46 of the snubbers, the licensee would be forced to proceed to Mode 5 (cold shutdown) in order to perform all of the required inspections.
Due to the proximity of this date to the refueling outage, the licer:see has requested that an extension of the inspection interval be granted for inaccessible snubbers so that the inspections can be performed 'along v:ith other outage activities.
The licensee's history of snubber failures shows that only 7 failures have been found during the past 17 inspections of inaccessible
None of these snubbers will exceed its service life (as described in TS 4.7.8.e) during the proposed extension period.
Additionally, the proposed extension would not affect the remaining 48 snubbers which are considered accessible and would be inspected during the original interval.
Based upon this evaluation, the staff concludes that the proposed extension would not adversely affect overall plant safety.
The licensee's proposed TS amendment is, therefore, acceptable.
5'009130069'00906 PDR ADOCK 05000315 I,
P PDC
t 3.0 Ef ENVIRONMENTAL CONSIDERATION This amendment involves a change in a requirement with respect to the installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20 and a change in a surveillance requirement.
Me have determined that the amendment involves no significant increase in the
- amounts, and no significant change in the types, of any effluents that may be released offsite, arid that there is no significant increase in individual or cumulative occupational radiation exposure.
The Commission has previously issued a proposed finding that this amendment involves no significant hazards consideration and there has been no public comment on such finding.
Accordingly, this amendment meets the eligibility criteria for categorical 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 be prepared in connection with the issuance of these amendment.
4.0 CONCLUSION
'lie have concluded, based on the considerations discussed above, that (I) there is reasonable assurance that the health and safety of the public will not be erdangered by operation in the proposed
- manner, (2) such activities will be conducted in compliance with the Commission s regulations, and (3) the issuance of the amendment will net be inimical to the common defense and security or to the health arid safety of the public.
Date: September 6, f990 Principal Contributor:
R. J. Stransky, Jr. - PD3-I