ML19350E396
| ML19350E396 | |
| Person / Time | |
|---|---|
| Site: | Satsop |
| Issue date: | 03/31/1981 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Dobson D WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| Shared Package | |
| ML19350E394 | List: |
| References | |
| NUDOCS 8106220404 | |
| Download: ML19350E396 (2) | |
See also: IR 05000508/1980015
Text
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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REGION V
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1990 N. CALIFORNIA BOULEVARD
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SulTE 202. WALNUT CR EEK PLAZA
WALNUT CHEEK. CALIFORNIA 94596
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MAR 311981
Docket Nos. 50-508
50-509
Washington bblic Power Supply System
P. O. Box 1223
Elma, Washington 98541
Attention: Mr. D. E. Dobson
WNP-3/5 Program Director (Acting)
References:
(1) WPPSS letter from D. E. Dobson to G. S. Spencer
dated February 19,1981, No. G03-81-511
(2) Letter G. S. Spencer to F. D. McElwee' dated
January 9,1981
(3) WPPSS letter from D. L. Renberger to G. S. Spencer
dated July ll,1980, No, G03-80-1635
(4) Letter G. S. Spencer to N. O. Strand dated
June 9,1980
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Gentlemen:
Thank you for your letter, Reference (1) respunding to the Notice
of Violation submitted to you by Reference (2).
Your written. response
to item A in the Notice of Violation, has been reviewed and was found
to lack sufficient information to permit our assessment of your
corrective actions.
Your response to item A, regarding excessive offset of an ASME
Section III, Class 2 pipe spool, indicates that corrective action
cn both the
m ntified nonconforming spool and for all other nonconforming
spools will tensist of fairing all accessible welds to a three to
one taper.
The ASME B&PV Code,1974 Edition, Summer 1976 Addenda,
Subsection NC, paragraph NC 4232.1 specifies that "Any offset within
the allowable tolerance provide 3 above shall be faired to at least
3 to 1 taper over the width of the finished weld."
(emphasis added).
The condition identified in Reference (2) exceeded the ASME Code
allowable tolerance by a factor of two.
Accordingly, you are
requested to submit to this office, within twenty-five (25) days of
the date of this letter, a written statement or explanation addressing
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the following concerns:
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(1) The justification for deviation from the tolerance requirements
of paragraph NC 4232.1.
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D. E. Dobson
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(2) The cause of misalignment. exceeding code allowable tolerances
and the extent of known nonconformance of pipes and fittings,
supplied by this. vendor, to the forming tolerances of NC 4220.
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(3) The actions you have taken to assure that you have identified
. all pipes and fittings, supplied by this vendor, that do not
conform to the requirements of NC 4220.
(4) The controls which have been applied to ensure that grinding
operations have not encroached on m.simum wall thickness.
(5) The possibility tihat localized wall reductions (by grinding)
may create a local overstrain condition at the pipe or fitting.
Your written response to item B,. in the Notic. of Violation submitted
by Reference (2) (failua to incorporate contract specification requirements
into procedures), is satisfactory. The implementation and effectiveness
of the actions identified will be examined in a subsequent NRC inspection.
Please contact us if you have any questions regarding the above.
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Sincerely,
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R. H. Engelken
Director
cc:
R. L. Ferguson
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Managing Director
M. E. Witherspoon
Quality Assurance Director
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