ML19270F533
| ML19270F533 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 02/12/1979 |
| From: | Groce R YANKEE ATOMIC ELECTRIC CO. |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| References | |
| TASK-15-10, TASK-RR WYR-79-13, NUDOCS 7902150388 | |
| Download: ML19270F533 (1) | |
Text
Telephone 617 366-90ll twx F40-390-0739 YANKEE ATOMIC ELECTRIC COMPANY F
20 Turnptke Road Westborough, Massachusetts 01581 ANKEM WYR 79-13 e s February 12, 1979 United States Nuclear Regulatory Commission Washington, D. C.
20555 Attention: Office of Nuclear Reactor Regulation Dennis L. Ziemann, Chief Operating Reactors Branch #2 Division of Operating Reactors
Reference:
(a) License No. DPR-3 (Docket No. 50-29)
(b) YAEC letter to USNRC dated March 29, 1974, Proposc3 Change No. 115 (c) YAEC letter to USNRC dated August 6, 1971, Proposed Change No. 96 (d) USNRC letter to YAEC dated September 26, 1977
Dear Sir:
Subject:
Evaluation of Potential for Boron Dilution Accidents Your letter, Reference (d) requested Yankee to perform an evaluation of the potential for and consequences of boton dilution accidents which could result from the most limiting single failure or operator error, taking into account the plant specific system and instrumentation design.
In response to this request, we submit the f ollowing information.
x Boron dilution events during plant refueling, startup, power operation, and coastdown have been previously analyzed for the Yankee Rowe Station.
The results of that analysis were described in the FHSR and References (b) and (c).
In addition to the plant parameters analyzed at that time, we have evaluated other plant parameters by again using conservative assumptions consistent with plant design, technical specifications, and operating procedrves. The results of our evaluation establish that no additional potential boron dilution event could occur resulting from a single opera-tor error or a single component failure.
Based on these results, no corrective action, design or procedural, will be nece.asary.
We trust this information is acceptable to you; however, should
- ou have any questions, please contact us.
Very truly yours, YANKEE ATOMIC ELECTRIC COMPANY T // h R. H. Groce 790215o3g.g RTT/em
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