ML20071K636
| ML20071K636 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 07/22/1982 |
| 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 8208020152 | |
| Download: ML20071K636 (2) | |
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s TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 374ol 400 Chestnut Street Tower II July 22, 1982 5
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k BLRD-50-438/81-44 m
.To BLRD-50-439/81-46
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3 mi h)p U.S. Nuclear Regulatory Commission Region II-w Attn:
Mr. James P. O'Reilly, Regional Administrator CC 101 Marietta Street, Suite 3100 Atlanta,. Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - SECONDARY CONTAINMENT MODIFICATIONS - BLRD-50-438/81-44, BLRD-50-439/81 FINAL REPORT The subject deficiency 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. This was followed by our interim reports dated August 7 and October 5, 1981 and February 22, 1982. Enclosed is our final report.
If you have any questions concerning this matter, please get in touch with R. H. Shell at FTS 858-2688.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Manager g
Nuclear Licensing Enclosure cc:
Mr. Richard C. DeYoung, Director (Enclosure) f Office of Inspection and Enforcement l
U.S. Nuclear Regulatory Commission Washind on, DC 20555 t
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8208020152 820722 t
PDR ADOCK 05000438 S
PDR An Equal Opportunity Employer
i ENCLOSURE q
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 SECONDARY CONTAINMENT MODIFICATIONS BLRD-50-438/81-44, BLRD-50-439/81-46 10 CFR 50.55(e)
FINAL REPORT Description of Deficiency Engineering Change Notice (ECN) 1268 was issued by the Bellefonte Design Project (BLP) to raise the secondary containment dome 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 Procedure 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 (CEB and NEB) was not solicited.
Safety Implications Insufficient ECN review could result in a deficient design change being implemented which could adversely affect safe plant operation.
Corrective Action OEDC Audit M81-13 was conducted as a programmatic review of EN DEST review and handling of ECNs in accordance with EN DES-EP 4.02,
" Engineering Change Notices Handling." Numerous ECNs were listed as being deficient for not obtaining the appropriate Thermal Power Engineering Branch-(TPE) approval. Action to prevent recurrence of the subject NCR (BLNQAB8102) will be identified by the action to prevent recurrence of OEDC Audit M81-13 All organizations responsible for any. action related to changes required per ECN 1268 are now aware of the change. All changes -
associated with the ECN have been coordinated with the appropriate branches. The generic implications of this deficiency are being corrected through ECN reviews such as Audit M81-13 Any revision to EN DES-EP 4.02 required to prevent misinterpretation will be addressed as part of the response to Audit M81-13 6
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