ML20072B050
| ML20072B050 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 01/03/1983 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-SSINS-6820 737, IEB-81-01, IEB-81-1, NUDOCS 8301250182 | |
| Download: ML20072B050 (3) | |
Text
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Mr. James P. O'Reilly Serial No. 737 Regional Administrator N0/RMT:acm Region II Docket Nos. 50-338 U. S. Nuclear Regulatory Commission 50-339 101 Marietta Street, Suite 3100 License Nos. NPF-4 Atlanta, Georgia 30303 NPF-7
Dear Mr. O'Reilly:
IE BULLETIN NO. 81-01 SURVEILLANCE OF MECHANICAL SNUBBERS By NRC letter dated March 4, 1981, IE Bulletin 81-01, Revision 1-was received by VEPCO for action.
Our previous correspondence related to this document outlined our investigations and results.
The enclosure to this letter is intended to provide supplementary information concerning the subject bulletin for North Anna Power Station Units 1 and 2.
Very truly yours, M
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W. L. Stewart cc:
Mr. Robert A. Clark, Chief Operating Reactors Branch No. 3 Division of Licensing Director, Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555
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- s Enclosura Sarial No. 737 NORTH ANNA POWER STATION IE BULLETIN 81-01. REVISION 1 SURVEILLANCE OF MECHANICAL SNUBBERS There are four mechanical snubbers installed on North Anna linit 1.
These snubbers were installed in the spring of 1981 during a refueling outage.
There are no mechanical snubbers installed on North Anna Unit 2.
The four mechanical snubbers that were installed in the spring of 1981 were new Pacific Scientific Company (PSA-1/4) snubbers.
These snubbers were certified to meet the required functional tests.
In addition to the manufacturer's certification, these snubbers were field verified to be operable. The surveillance tests for snubber visual inspection and functional testing have been revised to reflect the four new mechanical snubbers.
The four installed mechanical snubbers and the one spare snubber were tested during the 1982 refueling outage. The snubbers were removed and sent to Wylie Laboratories for functional testing.
All of the snubbers were satisfactorily tested on July 6, 1982.
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