ML20079J776
| ML20079J776 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 12/15/1982 |
| 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 8212280358 | |
| Download: ML20079J776 (3) | |
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-s TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESL7.E a]401 g r q g.g 7 400 Chestnut Street Tower II '
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9 BLRD-50-438/82-77 BLRD-50-439/82-71 U.S. Nuclear Regulatory Commission Region II Attn:
Ma. James P. O'Reilly, Regional Adninistrator 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - SUBSTITUTION OF GROUTED ANCHORS FOR WEDGE BOLTS WITHOUT ENSURING ADEQUATE SHEAR LOAD CAPACITIES -
BLRD-50-438/82-77, BLRD-50-439/82 FIRST INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector P. E. Frederickson on November 17, 1982 in accordance with 10 CFR 50.55(e) as NCR 2072. Enclosed is our first interim report. We expect to submit our next report on or about March 28, 1983 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 o
L. M. Mills, Manager Nuclear Licensing Enclosure cc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
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EN"LOSURE j
BELLEFONTE NUCLF~R PLANT UNITS 1 AND 2 SUBSTITUTION OF GROUTED ANCHORS FOR WEDGE BOLTS WITHOUT ENSURING
-ADEQUATE SHEAR LOAD CAPACITIES NCR 2072 BLRD-50-438/82-77, BLRD-50-439/82-71 10 CFR 50.55(e)
FIRST INTERIM REPORT Description of Deficiency The substitution of grouted anchors of the same nominal outside diameter (OD) as the specified wedge bolt anchors on design drawings was authorized by site engineering personnel. For certain sizes of grouted anchors, the ability to withstand shear stresses is less than that of the wedge bolts specified by the design drawings for a given size anchor. This substitution, without ensuring that the shear-tension load values of the grouted anchors exceea that of the wedge bolt anchors, is in violation of the substitution guidelines in General Construction-Specification G-32 and site QA procedures BNP-QCP-2.8 and 10.6.
Interim Progress TVA's Division of Engineering Design will evaluate the deficiency described and provide appropriate corrective action. Further information rwegarding corrective action will be provided in the next report.
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L. M. Mills, ager, Nuclear Licensing, 400 CST 2-C December 15, 19 BELLEFONTE NUCLEAR NT - DOCUMENTATION OF DIFFERENCES BETWEEN OEDC DRAFT RESPONSE AND NUCLEAR LICENSING STAFF'S SUBMITTAL TO NRC-0IE ON NCR 2072
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Please refer to your Jacquard to me on the above subject received December 13, 1982 and my letter to J. P. O'Reilly dated today. We have attached a copy of your Jacquard indicating any Nuclear Licensing Staff revisions. The revisions were discussed with J. Worthy of your staff by telephone en December 14, 1982.
If you have any questions concerning these revisions, please get in touch wit'2 Dennis Terrill at extension 2680.
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