ML20106H913
| ML20106H913 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 10/10/1984 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8410310787 | |
| Download: ML20106H913 (2) | |
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~ TENNESSEE VALLEY AUTHORITY CHATTANOOGA, TENNESSEE 37401 s
400 Chestnut Street' Tower II 84 0CT 12 Boh2rDio,1984 1BLRD-50-438/82-42 BLRD-50-439/82-38 U.S. Nuclear Regulatory Commission
~ Region II Attn: Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - EVALUATION.0F FLANGE JOINTS -
BLRD-50-438/82-42, BLRD-50-439/82 FIFTH INTERIM REPORT i
The subject deficiency was initially reported. to NRC-0IE Inspector R. V. Crlenjak on June 1,1982 in accordance with 10 CFR 50.55(e) as NCR BLN CEB 8205. This was followed by our interim reports dated July 2 and l-November 17,1982, April 18,1983 and April 10, 1984. Enclosed is our fifth interim report. We expect to submit our next repot-t by May 31, 1985.
If you have any questions concerning this matter, please get in touch with R. H. Shell at FTS 858-2688.
7 Very truly yours, TENNESSEE VALLEY AUTHORITY 4
L. M. Mills, Mar.ager Nuclear Licensing Enclosure
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cc:
Mr. Richard C. DeYoung, Director (Enclosure) f Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 1
Washington, D.C.
20555 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 7
Atlanta, Georgia 30339 i
I OFFICIAL COPY 8410310787 841010 PDR ADOCK 05000438 s
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ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 EVALUATION OF FLANGE JOINTS NCR BLN CEB 8205 BLRD-50-438/82-42, BLRD-50-439/82-38 10 CFR 50.55(e)
FIFTH INTERIM REPORT -
Description of Deficiency Planged joints for ANS Safety Class 2 and-3 alternate analysis piping systems were not qualified in accordance with the ASME Boiler and Pressure Vessel Code, section III, paragraph NC-3647..This piping was analyzed using TVA's Office of Engineering (OE) Civil Engineering Support Branch (CEB) Report CEB-76-11. However, this report does not delineate guidelines or methods for flange design verification. Also, TVA design criteria WB-DC-40-31.7 does not address flange qualification. Flanged joints are used in a number of safety-related systems such as the Essential Raw Cooling Water System and the Component Cooling Water System.
Interim Progress TVA has identified all-previously completed alternate analyses which contain flanges. OE is still evaluating those flanges for compliance to ASME Code Section III using CEB-76-11 and other procedures approved by TVA.
CEB-76-11 has been revised to incorporate flange qualification procedures.
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