ML20073Q002
| ML20073Q002 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 04/22/1983 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8304280021 | |
| Download: ML20073Q002 (2) | |
Text
TENNESSEE VALLEY AUTHORITY 7
CH ATTANOOGA. TENNESSEE 374ot 400 Chestnut Street Tower II g
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.b m April 22, 1983 BLRD-50-438/83-26 BLRD-50-439/83-21
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U.S. Nuclear Regulatory Commission cs 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 - QUALIFICATION OF PROTECTIVE COATINGS - BLRD-50-438/83-26, BLRD-50-439/83 FIRST INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector Linda Watson on March 25, 1983 in accordance with 10 CFR 50.55(e) as NCR BLN ASB 8301. Enclosed is our first interim report. We expect to submit our next report by August 19, 1983 If you have any questions, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, nager Nuclear Licensing
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Enclosure cc:.Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory.Commisson Washington, D.C. 20555 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 "f
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An Equal Opportunity Employer
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ENCLOSURE BELLFONTE NUCLEAR PLANT UNITS 1 AND 2 QUALIFICATION OF PROTECTIVE COATINGS NCR BLN ASB 8301
' BLRD-50-438/83-26, BLRD-50-439/83-21 10 CFR 50.55(e)
FIRST INTERIM REPORT Description of Deficiency-i
' Protective coatings designated for Coating Service Level I use (use inside primary containment) were qualified to environmental conditions defined in the Bellefonte Preliminary Safety Analysis Report (PSAR).
Some'of these qualification parameters have now been changed and the current expected. conditions are more severe than those now contained in the FSAR. The protective coatings have not been qualified to these new environmental conditions. The environmental criteria which is of principal concern is the maximum temperature which could be reached inside containment. In the event of a main steam line break, the protective coatings could be subjected to a temperature spike exceeding 4000F while they have been qualified to a. temperature just under 3000F.
Interim Progress TVA is investigating this condition and will provide additional infonmation after a revised environmental envelope is received from Babcock and Wilcox.
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