ML20054K054
| ML20054K054 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 06/23/1982 |
| 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 8206300349 | |
| Download: ML20054K054 (2) | |
Text
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B2 JIJH 25 pge,23e 1982 BLRD-50-438/82-10 BLRD-50-439/82-10 U.S. Nuclear Regulatory Commission Region II Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303
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 SECOND INTERIM 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 NCR 1707. This was followed by our first interim report dated February 16, 1982. Enclosed is our second interim report. We expect to submit our next report by September 22, 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 o
- 4. Mills, Manager Nuclear Licensing Enclosure cc:
Mr. Richard C. DeYoung, Director (Enclosure) i l
Office of Inspection and Enforcement U.S. Nuclear Regulatory Cormnission Washington, DC 20555 I
ICIAL u O
004 8 PDR An Equal Opportunity Employer
ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 CHILLER UNIT PIPING COMPONENTS IMPROPERLY WELDED
.BLRD-50-438/82-10 BLRD-W-439/82-10 1
NCR 1707 SECOND INTERIM REPORT Description of Deficiency The chiller units listed below, manufactured by Dunham-Bush of West Hartford, Connecticut, exhibit extensive weld deficiencies on welds performed by the vendor. The extent of the deficiencies has not been fully evaluated yet, but visual examination revealed 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 2013A78X1633G -
A10 Between R&S Line (610')
DPW 2013A78X1633F -
Between A12&A13 - R&S Line (610')
DPW 2013A78X1633E -
Between A12&A13 - R&S Line (610')
Dunham-Bush Chiller Identification Numbers - Control Building Model Number - IPCX230-0Q PCX Serial Number Location DPW 2010M77X1601A -
Between C2&C3 - N&P Line (629')
l DPW 2010M77X1601B -
Between C2&C3 - N&P Line (610')
l Interim Progress TVA has evaluated the effects of the deficiencies on the seismic integrity of chillers and determined that the seismic integrity is unaffected.
However, TVA is still evaluating the service life and reliability aspects which resulted from the seismic review.
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