ML20087E142
| ML20087E142 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 03/06/1984 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-84 NUDOCS 8403160042 | |
| Download: ML20087E142 (2) | |
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- i TENNESS' - VALLEY AUTHORITY CH ATTANOOGA, TENNESSEE 37401 400 Chestnut Street Tower II bk)hh 4,9197f3 BLRD-50-438/84-17 BLRD-50-439/84-16 U.S. Nuclear Regulatory Commission 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 PLANTS UNITS 1 AND 2 - ITT GRINNELL PIPE SUPPORTS DESIGNED WITH SWAY STRUTS INSTEAD OF REQUIRED GAPS - BLRD-50-438/84-17, BLRD-50-439/84 FIRST INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector Ross Butcher on January 8,1984 in accordance with 10 CFR 50.55(e) as NCR BLN BLP 8403 Enclosed is our first interim report. We expect to submit our next report by August 28, 1985. We consider 10 CFR Part 21 applicable to this deficiency.
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, Manager Nuclear Licensing Enclosure cc:
Mr. Richard C. DeYoung, Direutor (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta. Georgia 30339 8403160042 840306 PDR ADOCK 05000438 S
PDR OFFICIAL COPY
$ E '7 1983-TVA SOTH ANNIVERSARY I \\
An Equal Opportunity Employer
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I ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 ITT GRINNELL PIPE SUPPORTS DESIGNED WITH SWAY STRUTS INSTEAD OF REQUIRED GAPS BLRD-50-438/84-17, BLED-50-439/84-16 NCR BLN BLP 8403 10 CFR 50.55(e)
FIRST INTERIM REPORT Description of Deficiency ITT Grinnell-designed pipe supports ORF-MPHG-03-9 R3,1VE-MPHG-2392 Sh 1 R2, and 1VE-MPHG-2392 Sh 2 R0, which are located on alternately analyzed safety-related plant systems have incorrect pipe movement data shown on the ITT Grinnell detail sheets. This could result in a support design where friction loads were not evaluated or swing angles were not properly checked. The incorrect movement data shown on the pipe support detail sheets resulted from the misinterpretation of the non-numeric pipe movement data listed on the alternate analysis table of support loads.
Interim Progress TVA will revise the alternate analysis load tables involved in the deficiency to change the non-numeric pipe movement entries to numeric values. The support detail sheets will be reviewed against -the revised load tables as they are issued. Those supports identified as. possessing incorrect movement data will be revised and the calculations checked for adequacy.
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