ML20079H985
| ML20079H985 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 01/11/1984 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NCR-2496, NUDOCS 8401240168 | |
| Download: ML20079H985 (2) | |
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y, TENNESSEE VALLEY ' AUTHORITY CH ATTANOOGA. TENNESSEE 37401 400 Chestnut Street Tower II M JM! W @aMii,1984 BLRD-50-438/84-01 BLRD-50-439/84-01 U.S. Nuclear Regulatory Commission Region II
' Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta' Street, NW, Suite 2900 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - FAILED G.E. TRIP BREAKERS
- BLRD-50-438/8h-01, ELRD-50-439/84 FIRST INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector P. E. Fredrickson on December 14, 1983 in accordance with 10 CFR 50.55(e) as NCR 2496. Enclosed is our first interim report. We expect to submit our next report by May 8,1984.
If you have any questions, pleasts get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY
. M.
L. M. Mills, nager Nuclear Licensing
-Enclosure cc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 JEICIA I, r'n n-8401240168 840111 gDRADOCK05000 27 I. \\
l 1983-TVA SOTH ANNIVERSARY An Equal Opportunity Employer
ENCLOSURE
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BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 FAILED G.E. TRIP BREAKERS BLRD-50-438/84-01, BLRD-50-439/84-01 l
NCR 2496 10 CFR 50.55(e)
FIRST INTERIM PEFORT Description of Deficiency Trip breakers 1NR-52-015-F and 016-G failed testing because they would not close. Some of the electrical contacts that function during the close stroke also appear to be burncd. A contributing factor of the failure appears to be a lack of proper maintenance or storage.
Interim Progresa TVA is currently considering the replacement of the defective breakers in unit 1 with two breakers from unit 2 that performed acceptably during preliminary testing as well as inuastigating the disposition of the two defective breakers.
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