ML19210D908

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Forwards Final Deficiency Rept Re Master & Slave Trip Unit Gross Failure Output Function
ML19210D908
Person / Time
Site: Grand Gulf  Entergy icon.png
Issue date: 11/20/1979
From: Dale L
MISSISSIPPI POWER & LIGHT CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19210D909 List:
References
AECM-79-128, NUDOCS 7911280404
Download: ML19210D908 (1)


Text

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C Helping B uild Mis sis si;>pi P. O . B O X 16 4 0. JACKSON. MIS SIS SIP PI 39205 PeODUCTION DEPAwTMENT Nove riie r 20, 1979 Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Region II 101 Marietta St., N. W., Suite 3100 Atlanta, Georgia 30303 ATTN: Mr. J. P. O'Reilly, Director

Dear Mr. O'Reilly:

SUBJECT:

Grand Gulf Nuclear Station File 0262/0498 Final Report for PRD-79/10 AECM-79/128 On June 20, 1979, Mississippi Power & Light Company notified your of fice (letter AECM-79/64) of a potential reportable deficiency at the Grand Gulf Nuclear Station construction site. The deficiency concerns a problem with the gross failure output function of both the master and slave trip units of the Rosemount Model 510 DU Trip Calibration System.

We have determined that this problem is not reportable within the neaning of 10 CFR 50.55(e) . Details are described in the attached final report.

Yc,urs truly, N

7 lL.

7 F. Dale f Nuclear Project Manager JRF/JDR:pa Attachment cc: Mr. N. L. Stampley bec: Dr. D. C. Gibbs Mr. R. B. McGehee Mr. A. Zaccaria Mr. T. B. Conner Mr. J. N. Ward Mr. D. M. Lake Mr. Victor Stello, Jr., gGtCt)ps F%R Mr. R. L. Scott Division of Inspection . .n fo rcement Mr. W. L. Nail U. S. Nuclear Regulatory Commission Mr. J. P. McGaughy Washington, D. C. 20555 Mr. T. E. Reaves Mr. C. K. McCoy Mr. J. C. Fuller Mr. A.

File R. Smith

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lA02 7hh Member Middle South Utilities System A 7911280_ v

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