ML20030B422
| ML20030B422 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 08/07/1981 |
| 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 8108180031 | |
| Download: ML20030B422 (2) | |
Text
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,e TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEC 37401 400 Chestnut Street T w r, M Nk at 7, 1981 BLRD-50-438/01-44 BLRD-50-439/81-46
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"U01I bOI" kS U.S. Nuclear Regulatory Commission
-4 Region II - Suite 3100 u g, 101 Marietta Street
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4 Atlanta, Georgia 30303
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Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - SECONDARY CONTAINMENT MODIFICATIONS - BLRD-50-438/81-44, BLRD-50-439/81 FTfST INTERIM F3 PORT l
The subject defiaiency was initially reported to NRC-0IE Inspector D. Quick on July 10, 1981 in accordance with 10 CFR 50.55(e) as NCR BLN QAB 8102. Enclosed is our first interim report. We expect to submit our next report by October 7, 1981.
If you have any questions concerning this matter, please get in touch with D. L. Lambert at FTS 857-2581.
Very truly yours, TENNESSEE VALLEY AUTHOBITY
'N L. M. Mills, Manager Nuclear Regulation and Safety Enclosure oc:
Mr. Victor Stello, Jr., Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 0}
8108180031 810807
'I PDR ADOCK 05000438 S
PDR An Equal Opportunity Employer
_____________________________.__.__________I
c' ENCLOSURE BELi.EFONTE NUCLEAR PLANT UNITS 1 AND 2 SECONDARY CONTAINMENT MODIFICATIONS BLRD-50-438/81-44, BLRD-50-439/81-46 10 CFR 50.55(e)
FIRST INTERIM REPORT Description of Deficiency Engineering Change Notice (ECN) 1268 was issued by the Bellefonte Design Project to raise the s:condary containment do:ne to allow adequate room for economic handling of Jacks and equipment required for inservice inspection of the vertical tendons on the primary contaiment. The intent of Engineering frocedure EN DES-EP 4.02,
" Engineering Change Notices - Handling," is to get approval of Thermal Power Engineering (TPE) Branches for changes of this magnitude where they are extensively involved. However, as this procedure is written in a manner that allows various interpretations, approval of Civil and Nuclear Engineering Branches was not solicited.
Interim Progress EN DES-EP 4.02 will be rewritten to make it clear that the TPE Branches approvs significant changes before issuance of an~ECN. The present wording uses the team " safety system," which does not explicitly include safety-related structures, Revisions to EP 4.02 should be complete by September 1, 1981.
TVA is analyzing the potential effects of issuing an ECN Sof this nature without prior review by the TPE Branches. This analysis will consider the required review of the revised design documents resulting from issuance of the ECN.
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