ML19320A713

Forwards Interim Deficiency Rept (PRD-80/11) Re Rosemount Model 510 Du Trip Unit & Final Deficiency Rept (PRD-80/11) Re Model 1152 Pressure Transmitters

ML19320A713
Person / Time
Site:	Grand Gulf
Issue date:	06/24/1980
From:	Mcgaughy J MISSISSIPPI POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19320A714	List: ML19320A713 ML19320A715 ML19320A717
References
AECM-80-141, NUDOCS 8007020538
Download: ML19320A713 (2)

Text

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N $cbO NP OS3b MISSISSIPPI POWER & LIGHT COMPANY l Helping Build Mississippi EnMWeddA P. O. B O X 16 4 0. J AC K S O N, MIS SIS SIP PI 3 9 2 0 5 p.ooveriou oc .=vu c=, June 24, 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 0260/15525/13526 PRD-80/11, Interim Report, Rosemount Model 510 DU Trip / Calibration Units and Model 1152 Pressure Transmitters AECM-80/141 On March 27, 1929, Mississippi Power & Light Company (MP&L) noti-fied Mr. F. Cantrell of your office of Potentially Reportable Deficiencies t (PRDs) at the Grand Gul? Nuclear Station (GGNS) construction site. These deficiencies concern Rosemount Model 510 DU trip / calibration units and Model 1152 pressure transmitters.

The deficiency with respect to the Model 510 DU Trip Unit had pre -

viously been reported to the NRC as a reportable condition per 10CFR50.

55(e). This is documented by our letter to you, AECM-80/31, dated Jan-uary 30, 1980. The corrective actions described in the attached interim report pertain to the NSSS scope of supply. We expect to submit a final report by October 22, 1980.

We have determined that the deficiency pertaining to the 1152 Pres-sure Transmitter is reportable within the meaning of 10CFR50.55(e). De-tails are described in the attached final report.

Yours truly,

-q p r J. P. McGaughy, Jr.

Assistant Vice President, Nuclear Production ATR:mt .

Attachment 8007020 h [ $

Member Middle South Utilities System

MISSISSIPPI POWER & LIGHT COMPANY

- Mr.'J.,P.~O'Reilly AECM-80/141 NRC Page 2 P

cc: Mr.-N. L. Stampley Mr. R. B. McGehee Mr..T. B. Conner

- Mr. Victor Stello, Director Division of Inspection & Enforcement' ,

U. S. Nuclear Regulatory Coneission

- Washington, D.C. 20555 e

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