ML20009G115
| ML20009G115 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 07/06/1981 |
| 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, DEFR-810706, NCR-BLN-BLP-800, NRC-BLN-BLP-800, NUDOCS 8108030342 | |
| Download: ML20009G115 (2) | |
Text
OtTICIAL copy 400 Chestnut Street Tower II July 6, 1981 oz \\ s N,f, 4-p Mr. James P. O'Reilly, Director (4 yL 94 JULo gggle- [
Office of Inspection and Enforcement H2 U.S. Nuclear Regulatory Commission 9,s.y?'J,o*cu R p
Region II - Suite 3100 g
101 !@rietta Street Atl 1, Georgia 30303 W
Dez.c Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - FILLET WELD MISSPECIFICATION -
NCR BLN BLP 8007 - FOURTH INTERIM REPORT The subject deficiency was initially reported to hRC-0IE Inspector R. W. Wright on November 7, 1980, in accordance with 10 CFR 50.55(e).
This was followed by our interim reports dated December 3,1980, January 19, 1981, and April 9, 1981.
Enclosed is our fourth interim report. We expect to submit our next report by September 23, 1981.
This deficiency has also been reported for every TV! nuclear plant.
If you have any questions concerning this matter, please get in touch with D. L. Lambert at FTS 857-2581.
Very truly yours, TENNESSEE VALLEY AUTHORITY i
t j
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'. - L. M. Mills, Manager Nuclear'. Regulation and Safety k
Enclosure cc:
Mr. Victor Stello, Jr., Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Co= mission Washington, DC 20555
[
L 8108030342 81070605000436 PDR ADOCK PDR S
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ENCLOSURE BELLEFC;ITE tiUCLEAR PLAllT U? LITS 1 AllD 2 FILLET '4 ELD MISSPECIFICATIO!!
GCR BL!i BLP 8007 10 CFR 50.55(e)
FOURTH IfiTERIM REPORT I
Description of Deficiency In a number of Bellefonte liuglear Plant systems, fillet welds were specified, in lieu of beveled groove welds, to connect members whose angle of intersection is outside the limits for fillet weld application as stipulated in the Amarican Institute of Steel Construction ( AISC) Standards. The AISC Standard states that the welds which are made joining tembers at an angle of 60 or less are to be defined as acute angle welds. Acute angle welds should be specified as beveled groove welds according to AISC.
Interim Prcgress TVA has fabricated representative mockups of the oject deficient welds. The Singleton Laboratory has been authorized to perfora destructive tests en these ":ockups and will provide TVA with the results cf these tests.
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