ML20209D842

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Forwards from Anonymous Engineer to Director of IE Re Shear Stress Calculations for Welds & Members Performed by Bechtel-Gaithersburg Using Bechtel-San Francisco Procedures.Encl Withheld
ML20209D842
Person / Time
Site: 05000000, Diablo Canyon
Issue date: 01/22/1985
From: Knighton G
Office of Nuclear Reactor Regulation
To: Kirsch D
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML082410749 List: ... further results
References
FOIA-86-197 NUDOCS 8502010800
Download: ML20209D842 (1)


Text

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UNITED STATES NUCLEAR REGULATORY COMMISSION n

E WASHINGTON, D. C. 20555

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JAN 2 2 25 MEMORANDUM FOR: Dennis Kirsch, Acting Director Division of Reactor Safety and Projects Region I FROM:

George Knighton, Chief Licensing Branch #3 Division of Licensing

SUBJECT:

ANONYMOUS ALLEGATION The attached letter, dated November 16, 1984, from an anonymous corerned engineer, addressed to the Director of OIE, was forwarded to NRR (-losure 1).

The statement " CONFIDENTIAL" is typed on the original, the statew+. " PROPRIETARY INFORMATION" was stamped on by OIE. Enclosure 1 should be withhelc trom public disclosure. The allegation is being evaluated by the Mechanical Engineering Branch in NRR.

The allegation has been entered into the NRC allegation tracking system (Enclosure 2) and was discussed by Richard Stark, NRR-DL, with Tom Crowley of Region V on about December 18, 1984 We request that the allegation be entered into the Region V allegation list for Diablo Canyon using the following description:

" Shear stress calculations for welds and members performed by Bechtel-Gaithersburg for Diablo Canyon Unit 2 used Bechtel-l San Francisco procedures which are less conservative than those normally used by Bechtel-Gaithersburg" 1

While auditing certain records at the PG&E offices during the week of January 14, 1985, we learned that PG&E received a similar letter. We do not intend to release the letter received by the NRC. We have requested PG8E to address the allegation as stated above (Enclosure 3).

Sincerely, George. Knight, Chief Licensing Branch No. 3 i

Division of Licensing l

Enclosure:

As stated cc: w/o enclosure E. Fox R. Bosnak R. Stark T. Crowley M. Ley N

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