ML20064H515
| ML20064H515 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 01/10/1983 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-83 10CFR-050.55E, 10CFR-50.55E, NCR-1686, NUDOCS 8301170329 | |
| Download: ML20064H515 (2) | |
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TENNESSEE VALLEY AUTHORITY CH ATTANOOG A. TENNESSEE 37401 i
400 Chestnut Street Tower II January 10, 1983 BLRD-50-438/82-04 w
BLRD-50-439/82-04 U.S. Nuclear Regulatory Commission Region II Attn:
Mr. Jarses P. O'Reilly, Regional Administrator l
101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 co c:
Dear Mr. O'Reailly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - BONNET STUDS IMPROPERLY TORQUED ON DECAY HEAT REMOVAL VALVES - BLRD-50-438/82-04, BLRD-50-439/82 SIXTH INTERIM REPORT i
The subjec't deficiency was initially reported to NRC-0IE Inspector l
R. V. Crlenjak on December 22, 1981 in accordance with 10 CFR 50.55(e) as NCR 1686. This was followed by our interim reports dated January 20, April 15, June 28, August 24, and November 1, 1982. Enclosed is our sixth i
interim report. We expect to submit our next report by April 11, 1983 We consider! 10 CFR Part 21 applicable to this deficiency.
If you $ ave any questions concerning this matter, please get in touch with R. H. Spell at FTS 858-2688.
l Very truly yours, TENNESSEE VALLEY AUTHORITY l
tvga L. M. Mills, Manager Nuclear Licensing s'
Enclosure cc:l Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
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1 An Equal Opportu uty Employer
j ENCLOSURE 1
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BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 BONNET STUDS IMPROPERLY TORQUED ON DECAY HEAT REMOVAL VALVES NCR 1686 BLRD-50-438/82-04, BLRD-50-439/82-04 10 CFR 50.55(e)
SIXTH INTERIn REPORT Description of Deficiency The following Borg-Warner (Van Nuys, California) bolted bonnet gate valves were furnished on contract 77K38-86163-8 and were found by field inspection to have bonnet studs which were torqued to values less than required by the applicable vendor drawing.
Borg-Observed Required Warner Torque Torque Mark No.
Item No.
Drawing No.
Serial No.
(Ft Lbs)
(Ft Lbs) 3AWO412-ND-35 636 80140 26165*
50-100 160-200 26166 20-100 160-200 26167 20-100 160-200 261685 0-180 160-200 3AWO412-ND-45 638 80130 26598 20-180 160-200 The valves which are installed and operational (as indicated by #) have been retorqued to the value required by the vendor drawing.
Interim Progress TVA has still not received notification from Borg-Warner of all valves supplied to TVA that would be subject to this deficiency. Consequently, this item will remain open until TVA can establish the adequacy of the corrective actions indicated in TVA's previous reports on this deficiency.
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