ML20069C529
| ML20069C529 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 03/11/1983 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-83 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8303180023 | |
| Download: ML20069C529 (2) | |
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TENNESSEE VALLEY AU.THg,1{Y; cH ATTANOOGA, TEhbd Act --
400 Chestnut Street owe M I((,'
March 1 33 laR 15 g19g3 50'Y3V U.S. Nuclear Regulatory Coinnission Region II Attn: Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, Suite 2900 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - ITT GRINNEL WELDED SUPPORTS -
NCR BLN BLP 8002 - EIGHTH INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector R. W.
Wright on September 5, 1980, in accordance with 10 CFR 50.55(e). This was followed by our interim reports dated October 3, 1980, January 22, April 29, and October 21, 1981, and March 26, July 12, and September 29, 1982. Enclosed is our eighth interim report. We expect to submit our next report by December 8, 1983 We consider 10 CFR Part 21 applicable to this deficiency.
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, nager Nuclear Licensing Enclosure oc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 8303180023 830311 PDR ADOCK 05000438
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ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 ITT GRINNELL WELDED SUPPORTS NCR BLN BLP 8002 10 CFR 50.55(e)
EIGHTH INTERIM REPORT Description of Deficiency Detail sheets supplied by ITT Grinnell for assembly of pipe hangers and supports had discrepancies in weld designations. Certain supports with welds made on structural members that make angles less than 60 degrees and greater than 135 degrees were designated as fillet welds but should have been groove welds. On some groove welds which were specified, the parentheses around the dimension were omitted. This omission indicated depth or size of bevel when in fact ITT Grinnel meant effective throat.
Both of the above weld joint designations conflict with applicable AWS symbols for welding (AWS A2.4-76) and do not provide sufficient information for fabrication and inspection.
Interim Progress TVA is working with ITT Grinnell to finish their revisions of all affected hanger detail sheets. Upon completion of all sheet revisions, TVA's Division of Construction will carry out the rework of all affected hangers. We anticipate completion of all design changes by our next report.
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