ML20096F284
| ML20096F284 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 08/21/1984 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8409070380 | |
| Download: ML20096F284 (2) | |
Text
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y TENNESSEE VALLEY AUTHORITY 1
CH ATTANOOGA. TENNESSEE 374ot ChesnQgffeeg{yeQI 4
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August 21, 1984 BLRD-50-438/84-12 BLRD-50-439/84-11 U.S. Nuclear Regulatory Coinnission Region II Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - HALOGENS IN CARBOLINE 305 PAINT ON SUPPORTS WHICH ARE AGAINST STAINLESS STEEL PIPE - BLRD-50-438/84-12, BLRD-50-439/84 SECOND INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector P. E. Fredrickson on January 31, 1984 in accordance with 10 CFR 50.55(e) as NCR BLN BLP 8401. This was followed by our interim report dated February 27, 1984. Enclosed is our second interim report. We expect to submit our next report by May 30, 1985.
If you have any questions, please get in touch with R. H. Shell at FTS 858-2474.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Manager Nuclear Licensing Enclosure cc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Records Center (Enclosure)
Institute of Nuclear Power Operations
'1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 GC 0
s OFFICIAL COPY
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f ENCLOSURE l
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 HALOGENS IN CARBOLINE 305 PAINT ON SUPPORTS WHICH ARE AGAINST STAINLESS STEEL PIPE BLRD-50-438/84-12, BLRD-50-439/84-11 NCR BLN BLP 8401 10 CFE 50.55(e)
SECOND INTERIM REPORT Description of Deficiency l
Carbon steel pipe supports top coated with carboline 305 paint, a halogen-containing substance, are in contact with stainless steel piping. The deficiency was identified at Bellefonte Nuclear Plant per Program Information Notice 83-8, " Stainless Steel-Pipe in Contact with Halogenated Protective Coatings," which documents the possibility of stress corrosion cracking of such piping at temperatures exceeding 140cF. The deficiency resulted from the failure to provide guidelines in' General Construction Specification G-29M restricting halogen-containing paint from contacting stainless steel piping.
Interim Progress TVA's Division of Construction (CONST) is proceeding with the remaval of the carboline 305 paint at the points where it comes in contact -
with the stainless steel pipe and system operating temperatures exceed 1400F.
A testing program has been initiated to define allowable halogen content in paints which will contact stainless steel piping. CONST specifications G-29M ana N4A-933 are being revised to define and control the use of halogen containing paints in contact with stainless steel piping.
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