ML20027B804
| ML20027B804 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 09/21/1982 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-82 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8209300156 | |
| Download: ML20027B804 (2) | |
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TENNESSEE VALLEY AUTHORITY
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CH ATTANOOG A, TENNESSEE 37401 400 Chestnut Street Tower II Q
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=z U.S. Nuclear Regulatory Commission E.
Region Il l
Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303
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Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - CHILLER UNIT PIPING. COMPONENTS IMPROPERLY WELDED - BLRD-50-438/82-10, BLRD-50-439/82 THIRD INTERIM 1
REPORT The -subject deficiency was initially reported to NRC-0IE Inspector R. V. Crlenjak on January 11, 1982 in accordance with 10 CFR 50.55(e) as i
NCR 1707. This was followed by our interim reports dated February 16 and June 23, 1982. Enclosed is our third interim report. We expect to submit our next report by Nove:nber 30, 1982. We consider 10 CFR Part 21 applicable to this deficiency.
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 t
L. M. Mills, Manager Nuc1csar Licensing Enclosure cc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Comission Washington, DC 20555 i
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An Equal Opportunity Employer
ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 CHILLER UNIT PIPING COMPONENTS IMPROPERLY WELDED NCR 1707 BLRD-50-438/82-10, BLRD-50-439/82-10 10 CFR 50.55(e)
THIRD INTERIM REPORT N
Description of' Deficiency The chiller units listed below, manufactured by Dunham-Bush of West Hartford, Connecticut, exhibit extensive seld deficiencies on welds performed by the vendor. Visual examination myealed undercut, cold lapped, porosity, weld spatter, lack of fusion, mismatched components, numerous are strikes, weld wires protruding from welds, and slag pockets.
Dunham-Bush Chiller Identification Numbers - Auxiliary Building Model Number - IPCX290-0Q PCX Serial Number Location DPW 2013M77X1633C -
Between A2&A3 - R&S Line (610')
DPW 2013M77X1633A -
Between A2&A3 - R&S Line (610')
DPW 2013M77X1633B -
Between A5&A6 - R&S Line (610')
DPW 2013A78X1633H -
Between A5&A6 - R&S Line (610')
DPW 2013A78X1633D -
A10 Between R&S Line (610')
DPW 2013A78X16330 -
A10 Between R&S Line (610')
DPW 2013A78X1633F -
Between A12&A13 - R&S Line (610')
DPW 2013A78X1633E -
Between A12&A13 - R&S Line (610')
J inham-Bush Chiller Identification Numbers - Control Building Wodel Number - IPCX230-00 J
PCX Serial Number Location DPW 2010M77X1601 A -
Between C2&C3 - N&P Line (629')
DPW 2010M77X1601B -
Between C2&C3 - N&P Line (610')
Interim Progress TVA has evaluated the effects of the deficiencies on the seismic integrity of chillers and determined that the seismic integrity is unaffected. TVA has also evaluated the service life and reliability aspects of recommendations which resulted from the seismic review and determined that these aspects are unaffected also.
TVA is investigating the cause of this nonconformance and the actions required to prevent recurrence.
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