ML19320A810
| ML19320A810 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 06/02/1980 |
| From: | Mcgaughy J MISSISSIPPI POWER & LIGHT CO. |
| To: | |
| References | |
| AECM-80-19, DEFER-800602, NUDOCS 8007020640 | |
| Download: ML19320A810 (2) | |
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MISSISSIPPI PO'NER & LIGHT COMPANY Helpin.' Build Mississippi metRMdd P. O. B O X 1640] Jgpy S QQ,. gly SIS SIP PI 3 9 2 0 5 PRODUCTlON DEP ARTN ENT June 2, 1980 Office of Inspection & Enforcement U. S. Nuclear Regulatory Comission Region II 101 Marietta St., N. W., Suite 3100 Atlanta, Georgia 30303 Attention:
Mr. J. P. O'Reilly, Director
Dear Mr. O'Reilly:
SUBJECT:
Grand Gulf Nuclear Station Units 1 and 2 Docket Nos. 50-416/417 File 0260/15525/15526 PRD-80/06, Status Report #2, Modification to Dragon Valve Manifolds AECM-80/119 The deficiency described in this report concerns modifications to certain two and five valve manifolds supplied by Dragon Valves, Inc. The deficiency was investigated in L y of 1977 and filed under Bechtel MCAR-GGNS No. 26.
That investigation concluded that the deficiency was not reportable under 10 CFR 50.55(e).
In a recent site inspection, Mr. M. Gouge of your office reviewed the above referenced MCAR. In that inspection of March 6, 1980, Mr. Gouge conclud-ed that this deficiency concerning Dragon Valves was improperly evaluated.
This inspection and questioning of the rationale used to determine reportability i,
i reopened this issue.
The background information and history of this deficiency was provided to you in our report, AECM-80/69, dated A'pril /.,1980.
Our re-evaluation of this matter is as yet incomplete. Valve manifolds involved in this matter are desig-ated with Mark Nos. J-21-2N and J-21-5N, two end five valve manifolds, respec-tively. Our findings indicate that none of the five valve manifolds are employed j
in safety related systems. Our findings also indicate that some of the suspect l
two valve manifolds are employed in the Standby Liquid Control (SLC) System, I
a safety related system. We are currently investigating the application of these l
valve manifolds at GGNS and the related safety impact of this deficiency.
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. OFFICIAL COPY
'.6 80070s Ud ember Middle South Utilities System 3
,a MISSISSIPPI POWER & LIGHT COMPANY l
Office of Inspection & Enforcement AECM-80/119 U. S. Nuclear Regulatory Commission Page 2 This matter is being tracked under Bechtel MCAR-GGNS No. 26 and PRD-80/06.
We expect to provide our final report on this matter no later than July 2, 1980.
Yours truly, p J. P. McGaughy, Jr.
Assistant Vice President
' Nuclear Production JGC/JDR:gks cc:
Mr. N. L. Stampley e
Mr. R. B. McGehee Mr. T. B. Conner Mr. Victor Stello, Jr., Director Division of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washingt::n, D. C. 20555 i
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