ML17264A790
| ML17264A790 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 01/09/1997 |
| From: | NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML17264A789 | List: |
| References | |
| NUDOCS 9701160006 | |
| Download: ML17264A790 (2) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON> O.C. 2055&4001 SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO. 66 TO FACILITY OPERATING LICENSE NO. DPR-18 OC STER GAS AND ELECTRIC CORPOR TION E.
GINNA NUCLEAR POWER PLANT DOCKET NO. 50-244
1.0 INTRODUCTION
By letter dated October 29, 1996, the Rochester Gas and Electric Corporation (the licensee) submitted a request for changes to the R.
E. Ginna Nuclear Power Plant Technical Specifications (TSs).
The requested changes would correct an error with respect to Table 3.3.2-1, Engineered Safety Feature Actuation System Instrumentation, Function 6c on actions required on loss of one channel of Steam Generator Level - Low Low logic used for auxiliary feedwater pump actuation.
The requested amendment would replace the current requirement for restoration of the inoperable channel within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> to placing the inoperable channel in the trip condition within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
- 2. 0 EVALUATION On February 13,
- 1996, NRC issued Amendment No.
61 which replaced the plant specific Ginna TS with the Westinghouse Improved Technical Specifications (ITS), NUREG-1431.
Subsequent to the implementation of Amendment No. 61, the licensee discovered that there was an error under "Conditions" specified for "Function 6c" in Table 3.3.2-1.
Function 6c relates to the actions required on loss of one channel of Steam Generator Level - Low Low logic for the auxiliary feedwater pump actuation.
The licensee discovered that the "Condition" for Function 6c should be "F" and not "D."
Condition "D" states that, "If a channel is inoperable, 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> is allowed to restore it to OPERABLE status."
The ITS states the "Required Action" for the same function is "F" which is to "Place channel in trip in 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />."
The error has the potential to create a forced outage if an inoperable channel cannot be repaired within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> when placing the channel in tripped condition is an acceptable alternative.
The staff review confirms that a mistake was made in
.'implementing the ITS in Amendment No.
61 and the change requested to a 6 hour6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> required action for this function is appropriate and, therefore, the proposed change is acceptable.
3.0 STATE CONSULTATION
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In accordance with the Commission's regulations, the New York State official was notified of the proposed issuance of the amendment.
The State official had no comments.
970lih0006
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4.0 ENVIRONMENTAL CONSIDERATION
The amendment changes a requirement with respect to installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20.
The NRC staff has 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, and that there is no significant increase in individual or cumulative occupational radiation exposure.
The Commission has previously issued a proposed finding that the amendment involves no significant hazards consideration, and there has been no public comment on such finding (61 FR 64395).
Accordingly, the 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 the amendment.
5.0 CONC USION The Commission has 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, (2) such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendment will not be inimical to the common defense and security or to the health and safety of the public.
Principal Contributor:
S.
Mazumdar Date:
January 9, 1997