ML19330B650

Interim Deficiency Rept 2 Re Rodent Damage to Cable Insulation Involved W/Rhr Sys.Investigation Incomplete.Final Rept to Be Submitted by 801016

ML19330B650
Person / Time
Site:	Grand Gulf
Issue date:	07/29/1980
From:	Mcgaughy J MISSISSIPPI POWER & LIGHT CO.
To:
References
AECM-80-169, NUDOCS 8008050325
Download: ML19330B650 (1)

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i.2 MISSISSIPPI POWER &. LIGHT COMPANY U

? Helping Build Mississippi Ed P. O. B O X 16 4 0. J A C K S O N, MISSISSIP PI 39205 NU%EAM PRoOOCT!CN CEPARTMENT July 29, 1980 Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, N.W.

Suite'3100 Atlanta, Georgia 30303

. Attention: "Mr. J. P. O'Reilly, Director

SUBJECT:

Grand Gulf Nuclear Station Units 1 and 2 Docket Nos. 50-416/417 File 0260/15525/15526 PRD-80/13, Interim Report rt 2 ,

Rodent Damage to Cable Insulation AECM-80/169

Reference:

AECM-80/91, 5/1/80 On April 3, 1980, Mississippi Power & Light Company notified Mr. F. Cantrell of your office of a Potentially Reportable Defi-ciency (PRD) at the Grand Gulf Nuclear Station construction site.

The deficiency concerns rodent damage to cable insulation. The cables involved are associated with the Residual Heat Removal (RHR) system.

As previously reported, this deficiency has been determined to be reportable under 10CFR50.55(e). However, our evaluation of additional safety implications, as well as the generic significance, has not been completed. We expect to complate this evaluation and

-submit a final report by_ October 16, 1980.

Yours truly,

/g J. P.Assistant McGaughy, Jr.

Vice President, Nuclear Production ATR:mt.

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.cc: Mr. N. L. Stampley Mr. Victor Stello, Director- -

Mr. R..B. McGehee Division of Inspection & Enforcement Mr. T. 3. Conner U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Member Middle South Utilities System /M

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