ML20069K003
| ML20069K003 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 04/18/1983 |
| 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 8304260169 | |
| Download: ML20069K003 (2) | |
Text
e o
e TENNESSEE VALLEY AUTHORITY CHATTANOOGA, TENNESSEE 374ol 400 Chestnut Street Tower II April 18, 1983 BLRD-50-438/82-42 BLRD-50-439/82-38 5
lk y
.o U.S. Nuclear Regulatory Comission
'y i
Region II i_
Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 1l-Atlanta, Georgia 30303 C^
.c i.
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - EVALUATION OF FLANGE JOINTS -
BLRD-50-438/82-42, BLRD-50-439/82 THIRD INTERIM REPORT 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 November 17, 1982. Enclosed is our third interim report. We expect to submit our next report by April 18, 1984. This deficiency has also been reported for Watts Bar Nuclear Plant as NCR WBN CEB 8218.
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, ager Nuclear Licensing Enclosure oc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Comission Washington, D.C.
20$55 Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 M,M{'[npI 8304260169 830418 PDR ADOCK 05000438 oy S
[s>7 An Equal Opportunity Employer
i,
'e 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)
THIRD 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 This piping was analyzed Vessel Code, section III, paragraph NC-3647 using TVA's Division of Engineering Design Civil Engineering Branch 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 Bellefonte " Alternate Criteria for Piping Analysis and Supports,"
No. CEB-76-11, is being revised to incorporate flange qualification Flanges on all new and previously completed problems will be procedures.
evaluated by the Bellefonte Design Project for compliance to ASME Section III using revised CEB-76-11 and other procedures approved by TVA's Division of Engineering Design's Civil Engineering Support Branch.
3
[,
z u _ _.
_