ML20002D089
| ML20002D089 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 01/09/1981 |
| 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, SQRD-50-328-81, NUDOCS 8101190400 | |
| Download: ML20002D089 (2) | |
Text
.
se I'sE3522 / ALLEY A ;.7 - C C ' ~ 7 7
400 Chestnut Street Tower II January 9, 1981 Y'it~ /'
SQRD-50-328/81-02 f! }f
~
g 04.,
vt 4,
8-JA
! g,N161981 73 Mr. James P.
'Reilly, Director Office of Insp tion and Enforcement
.comisson U.S. Nuclear Re atory Conr.ission
'N-Region II - Suite 100 101 Marietta Street V 4' Atlanta, Georgia 303 3
Dear Mr. O'Reilly:
SEQUOYAH NUCLEAR PLANT UNIT 2 - FILLET WELDS MISSPECIFICATION -
SCRD-50-328/81 FIRST INTERIM REPORT The subject deficiency was initially reported to NRC-0!E Inspector R. W. Wright on December 10, 1980, in accordance with 10 CFR 50.55(e) as NCR SQN SWP 8025. Enclosed is our first interim report. We expect to submit our next report by March 3, 1981.
If you have any questions, please get in touch with D. L. Lambert at FTS 857-2581.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Manager Nuclear Regulation and Safety Enclosure Mr. Victor Stello, Director (Enclosure)/
ec:
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 ps!1 5ie 7
- gado
~
1 0
' t ENCLOSURE SECUOYAH NUCLEAR PLANT UNIT 2 FILLET WELD MISSPECIFICATION SQRD-50~-328 /81 10 CFR 50.55(e)
FIRST INTERIM REPORT Description of Deficiency In a number of TVA nuclear plant systems, fillet welds were specified in lieu of beveled groove welds, to connect members whose angle of inter-section is outside the limits for fillet weld application as stipulated in the American Institute of Steel Construction ( AISC) Standards. The AISC Standard states that the welds which are made joining members 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 Progress TVA is in the proce.ss of evaluating the AISC Standards and the affected welds in ceder to determine a satisfactory resolution.
4 D
L
.