ML20080G180
| ML20080G180 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 09/15/1983 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8309200107 | |
| Download: ML20080G180 (2) | |
Text
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.y 4pfNh TENNESSEE VALLEY AUTHORITY
' ' 'U. g CH ATTANOOGA, TENNESSEE 37401
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,4 400 Chestnut Street Tower II 8[p
!' g September 15, 1983 BLRD-50-438/82-14 BLRD-50-439/82-14 U.S. Nuclear Regulatory Commission Region II Attn: Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 IMPROPER USE OF FOAM PLASTIC INSULATION ON STAINLESS STEEL PIPE - BLRD-50-438/82-14, BLRD-50-439/82 SIXTH INTERIM REPORT The subject deficiency was initially reported to NRC-0IE Inspector R. V. Celenjak on February 3, 1982 in accordance with 10 CFR 50.55(e) as NCR BLN BLP.8203 This was followed by our interim reports dated March 5, June 1, September 7 and December 10, 1982 and March 21, 1983 Enclosed is our sixth interim report. Please note that a five-day delay of our submittal was discussed with P. E. Fredrickson on September 14,1983
- We expect to submit our next report by October 17, 1984.
If you have any ' questions concerning this matter, please get in touch with -
R. H. Shell at FTS 858-2688.
2 Very truly yours, TENNESSEE VALLEY AUTHORITY
\\,
l L. M. Mills, Ma3ager Nuclear Licersing Enclosure cc: Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 i
I Records Center (Enclosure)
Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 8309200107 830915 PDR ADOCK 05000438 S
PM OFFICIAL COPY l-q,
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c ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 IMPROPER USE OF FOAM PLASTIC INSULATION ON STAINLESS STEEL PIPE NCR BLN BLP 8203 BLRD-50-438/82-14, BLRD-50-439/82-14 10 CFR 50.55(e).
SIXTH INTERIM REPORT Description of Deficienev During the process of a design review, a deficiency was discovered in the use of foam plastic insulation on stainless steel pipe. Foam plastic
-insulation cannot be purchased to meet the requirements for chloride and fluoride content for use on stainless steel pipe as defined by Regulatory Guide 1 36.
This deficiency resulted from the use of two instructional documents by designers which specify foam plastic insulation to be used on cold water piping without distinction to stainless steel (refer to ee' orandum from R.
m G. Pratt to Bellefonte Design Project Files dated October 20, 1978, "Bellefonte Nuclear Plant Pipe Insulation" and Mechanical Design Guide DG-M18.9.1 R1). The designers used these documents in preparing pipe insulation drawings, seismic analysis modes, and pipe insulation procurement drawings. Accordingly, some drawings were released incorrectly calling for the foam plastic insulation on stainless steel pipe. This deficiency is applicable only to Bellefonte Nuclear Plant. The material has been procured, but none has been installed.
Interim Progress TVA has not yet completed the revision of the unit 1 seismic analysis drawings discussed in our previous report. In addition, some seismic reanalysis is required for unit 2 supports. This work has been scheduled in conjunction with other unit 2 analysis work. Consequently, TVA will provide a final report upon completion of the unit 2 reanalysis work.
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