ML13310B557
| ML13310B557 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 07/23/1984 |
| From: | Baskin K Southern California Edison Co |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML13310B558 | List: |
| References | |
| GL-84-013, TAC-55407 NUDOCS 8407250395 | |
| Download: ML13310B557 (2) | |
Text
Southern California Edison Company P. 0. BOX 800 2244 WALNUT GROVE AVENUE KENNETH P. BASKIN ROSEMEAD, CALIFORNIA 91770 TELEPHONE VICE PRESIDENT 818-572-1401 Mr. H. R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Gentlemen:
Subject:
Docket No. 50-206 Amendment Application No. 123 San Onofre Nuclear Generating Station Unit 1 Enclosed are three executed and thirty-seven conformed copies of Amendment Application No. 123 in Docket No. 50-206. Amendment Application No. 123 consists of Proposed Change No. 132 to the Technical Specifications incorporated into Provisional Operating License No. DPR-13 as Appendices A and B.
Proposed Change No. 132 is a request to revise the Appendix A, Technical Specifications to-eliminate the snubber listings from the shock absorber surveillance and operability specifications.
The proposed specifications conform to the extent practicable with the model specifications transmitted by NRC Generic Letter No. 84-13 dated May 3, 1984.
As discussed in the following paragraph, the existing snubber operability specifications require modification prior to entry into Mode 4.
Based on the current return to service schedule, hot functional testing, which will require entry into Mode 4, will begin on August 14, 1984. Since there is not sufficient time available for the 30 day public notice in the Federal Register, it is respectfully requested that Proposed Change No. 132 be reviewed as an exigent change to the Technical Specifications.
oc As part of the seismic upgrade program at San Onofre Unit 1, t,
significant changes in the quantity, size and type of snubbers used in the oo0 plant are being made. Snubber replacement efforts are directed towards coin installation of mechanical snubbers wherever possible due to their higher 0
In functional reliability. The existing specifications allow only additions to the snubber listings in the Technical Specifications without prior license 00 amendment. However, the modifications described above delete safety related at<
hydraulic snubbers listed in the Technical Specifications (replace hydraulic cs snubbers with mechanical snubbers).
Because the existing specifications do tc, not allow Mode 4 entry after modifications of this nature (without a license amendment), it is necessary to revise the existing specifications to reflect
) these changes prior to Mode 4 entry. Snubber modifications are being conducted on a continuing basis and are scheduled to be completed just prior revise the snubber listings at this time. Based on the requirements of the
Mr. H. R. Denton
-2 existing specifications, it would be necessary to revise the snubber listings upon completion of the snubber modifications and prior to Mode 4 entry. This schedule would impose a time constraint which would allow approximately two days to obtain a license amendment before hot functional testing.
In order to avoid this time constraint, Proposed Change No. 132 is submitted to revise the existing specifications in accordance with the model specifications transmitted by Generic Letter No. 84-13. The revised specifications will allow the necessary flexibility in snubber accountability in order not to impact the current return to service schedule.
Pursuant to 10 CFR 170.12 as revised in 49 FR 21293 dated May 21, 1984, the fee of $150.00 is herewith remitted.
Very truly yours, Enclosures cc: J. B. Martin, Regional Administrator, NRC Region V J. 0. Ward, Chief, Radiological Health Branch, State Department of Health Services