ML20083N462
| ML20083N462 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 01/24/1983 |
| 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 8302010659 | |
| Download: ML20083N462 (2) | |
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TENNESSEE VALLEY AUTHORITY CH ATTANOOG A. TENNESSEE 37401 400 Chestnut Street Tower II January 24, 1983 l
BLRD-50-438/82-39 BLRD-50-439/82-35 Q
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U.S. Nuclear Regulatory Commission a
Region II y
Attn:
Mr. James P. O'Reilly, Regional Administrator C
101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 g
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - DEFICIENT PIPE 3UPPORTS -
BLRD-50-438/82-39, BLRD-50-439/82 SECOND INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector R. V. Celenjak on Decenber 15, 1981 in accordance with 10 CFR 50.55(e) as NCR BLN BLP 8130. This was followed by our interim report de.ted Jtme 21, 1982. Enclosed is our second interim report. We expect to submit our next report by July 15, 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 DT W 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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ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 DEFICIENT PIPE SUPPORTS NCR BLN BLP 8130 BLRD-50-438/82-39, BLRD-50-439/82-35 10 CFR 50.55(e)
SECOND INTERIM REPORT Description of Deficiency An error was discovered in the thermal movement column of a support design load drawing (drawing No. 3BH04 19-NV-04). A zero was entered in the thermal movement column for the unrestrained directions of about 20 supports listed on this drawing when in fact there is r small amount of thermal pipe movement in these unrestrained directio16.
Because zero was listed as the thermal pipe m,vement of these i
supports, a frictional load was not included in the design of these supports.
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-.,..~.s Interim Progress The support dcsign lo d drawings, which were identified as having a zero in the thermal movem(nt ' column 'in unrestrained ' directions; ~have1~"
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l been revised to remove..that terroneoussinfoimation.ws.The.affected ;supportsbs,4,,nau,w,>
will be evaluated l.toEdeterminc;,1f,thefadditionior affrictional.' load.;willd,9 W y,fc i %
require any changes in the support configurations.
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