ML20003A906
| ML20003A906 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 02/03/1981 |
| From: | Morisi A BOSTON EDISON CO. |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0619, RTR-NUREG-619 81-16, NUDOCS 8102100040 | |
| Download: ML20003A906 (2) | |
Text
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BOSTON EDISON COMPANY GENERAL OFFlcEm 300 WovteTON STmEET BoETON, M ASSAcMum ETTS O219 9 A. V. MO mist MANAGER NUCLEAR QPERATIONS SUPPORT QEPARTMENT Februari 3, 1981 BEco. Ltr. #81-16 Mr. Darrell G. Eisenhut, Director Division Of Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555 License No. DPR-35 Docket No. 50-293 NUREG-0619 Modification Implementation
Dear Sir:
By letter dated November 13, 1980, you transmitted the revised and final edition of Nureg-0619, "BWR Feedwater Nozzle and Control Rod Drives Return Line Nozzle Cracking". Licensees were requested to furnish confimation that the implementation dates for modifications, will be made in accordance with the Nureg-0619 schedule. Accordingly, the following items were iden-l tified as requiring modifications in order to comply with the Nureg-0619 requirements and are scheduled for completion by June 30, 1983:
l l
1.
Rerouting of the existing Reactor Water Cleanup (RWCUS) l return line such that RWCUS return water is routed to all feedwater nozzles.
2.
The existing Feedwater "startup" (Bypass) regulating valve which is currently a manual control valve will be modified to provide for automatic low flow control over a range of approximately 15% flow.
l 3.
a) The installation of an equalizing valve between the cooling water header and the nomal drive move-ment exhaust water header and the replacement of carbon steel piping in the flow stabilizer loop, if flow is not to be maintanined on the Control Rod O
Q Drive Return Line or, b)
If flow is expected to be maintained during future l
nonnal operations, then a pressure-control station in the cooling water header will be installed.
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BEco Ltr. #81-16 The staff encouragement for further developnent, installation and use of on-line leakage measuring systems for possible future relaxation of in-service inspection requirements warrants further investigation, and therefore, Boston Edison Company cannot commit to such a modification at this time.
Should you have any questions regarding the scheduling or modifications as comitted above, please do not hesitate to contact us.
Very truly yours, Ccmonwealth of Massachusetts)
County of Suffolk
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Then personally appeared before me A. Victor Morisi, who, being duly sworn, did state that he is fianager-Nuclear Operations Support of Boston Edison Company, the applicant herein, and that he is duly authorized to execute and file the submittal contained herein in the name and on behalf of Boston Edison Company and that the statements in said submittal are true to the best of his knowledge and belief.
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My Corrnission expires-
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Notary Public
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