ML13330B436
| ML13330B436 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 12/02/1988 |
| From: | Medford M Southern California Edison Co |
| To: | NRC Office of Administration & Resources Management (ARM) |
| References | |
| NUDOCS 8812060040 | |
| Download: ML13330B436 (1) | |
Text
Southern California Edison Company P.
0 BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD, CALIFORNIA 91770 M. O.MEDFORD December 2, 1988 TELEPHONE MANAGER OF (818) 302-1749 NUCLEAR REGULATORY AFFAIRS U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 Gentlemen:
Subject:
Docket No. 50-206 Transshipment of Spent Fuel San Onofre Nuclear Generating Station Unit 1 The purpose of this letter is to clarify an error in the report, "Transshipment of San Onofre Unit 1 Spent Fuel," submitted to the NRC by letter dated April 25, 1988. The April 25, 1988 report superseded the December 24, 1987 report regarding the same subject to (among other things) include the use of the impact limiter for lifts of the spent fuel cask over the decontamination pad. The use of the impact limiter was discussed in the April 25, 1988 report and the April 28, 1988 license amendment.
However, the April 25, 1988 report which was prepared by revising the December 24, 1987 report inadvertently retained the superseded sentence regarding redundant shutdown equipment on Page 17 of the report. This same report correctly discusses the use of an impact limiter beginning on Page 28. Additionally the April 28, 1988 license amendment correctly reflects the use of an impact limiter on Page 3 of Attachment 1. As indicated in the April 28, 1988 amendment application we are utilizing the impact limiter to prevent the spent fuel cask from penetrating the decontamination pad and affecting the cables for the shutdown equipment.
Since the impact limiter is designed to prevent penetration of the decontamination pad, it is not credible to assume that the cables for the shutdown equipment will be impacted by a cask drop.
Accordingly it is requested that your Safety Evaluation which supports the issuance of Amendment No. 116 to the San Onofre Unit 1 License be revised to reflect the use of the impact limiter for protection of safety related equipment without reliance on redundant shutdown equipment.
Very truly yours, 120/.04 PDR
'ADOC C05C6 P
PDC cc: C. M. Trammell, NRR Project Manager, San Onofre Unit 1 J. B. Martin, Regional Administrator, NRC Region V F. R. Huey, NRC Senior Resident Inspector, San Onofre Units 1, 2 and 3