ML19331E461
| ML19331E461 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 08/07/1980 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NCR-SQN-SWP-801, NUDOCS 8009100236 | |
| Download: ML19331E461 (2) | |
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6 g TENNE 2CEE VALLEY AUTHORITY CHATTANOCGA. TENNESSE,5j 37 ie.
400 Chestnut Street 1 54r II.
Augu)1/ ]Q $80A g a ql Mr. James P. O'Reilly, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region II - Suite 3100 101 Marietta Street Atlanta, Georgia 30303
Dear Mr. O'Reilly:
SEQUOYAH NUCLEAR PLANT UNIT 2 - EVALUATION OF SENSING LINE CONNECTIONS TO PROCESS PIPING - NCR SQN SWP 8010 - FIRST INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector R. McFarland on July 9,1980, in accordance with 10 CFR 50.55(e).
Enclosed is our first interim report. We expect to submit our next report by October 17, 1980.
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 h4 L. M. Mills, Manager s
Nuclear Regulation and Safety Enclosure cc:
Mr. Victor Stello, Jr.
Director (Enclosure)
{
Office of Ir.spection and Enforcement j
U.S. Nuclear Regulatory Commission Washington, DC 20555.
i fD #30 v...r' ; N.. C t
An Equal Opportunity Employer 8 009100 Ah 5
N.
ENCLOSURE
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SEQUOYAH NUCLEAR PLANT UNIT 2 EVALUATION OF SE'! SING LINE CONNECTIONS TO PROCESS PIPING 10CFR50.55 (e)
NCR NO. SQN SWP 8010 TIRST INTERIM REPORT Description of Deficiency During a rigorous analysis of several safety-related piping systems, it was found that all the sensing lines taken off of 2-1/2-inch or under process lines were not included in the process line analysis.
This was mainly due to the fact that the sensing lines were assumed to be tubing lines 6 when they were actually piping lines.
Interim Progress TVA is currently reanalyzing the affected process piping. We expect to complete the reanalysis of unit 2 by the end of September.
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