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Y j        MISSISSIPPI POWER S. LIGHT COMPANY Helping Build Mississippi miaMMudas      P. O. B O X 16 4 0. J A C K S O N. MISSISSIPPI 39205
Y j        MISSISSIPPI POWER S. LIGHT COMPANY Helping Build Mississippi miaMMudas      P. O. B O X 16 4 0. J A C K S O N. MISSISSIPPI 39205 NUCLEAR PRoouCTioN oEPAMMENr                            July 23, 1980
                                            .
NUCLEAR PRoouCTioN oEPAMMENr                            July 23, 1980
     . Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission                                            '
     . Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission                                            '
Region II 101 Marietta Street, N.W.
Region II 101 Marietta Street, N.W.
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Assistant Vice President,          ,$
Assistant Vice President,          ,$
Nuclear Production ATR:mt                                                                      [ h 1
Nuclear Production ATR:mt                                                                      [ h 1
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l 30o@9066                      Member Middle South Utilities System                      j
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30o@9066                      Member Middle South Utilities System                      j


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MISSISSIPPI POWER & LIGHT COMPANY l
MISSISSIPPI POWER & LIGHT COMPANY l
L          J. P. O'Reilly                                AECM-80/166 Page 2
L          J. P. O'Reilly                                AECM-80/166 Page 2 cc: Mr. N. L. Stampley                                                      '
                                                                                    ,
Mr. R. B. McGehee Mr. T. B. Conner Mr. victor Stello, DirectoA THIS COPY FOR Division of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555
cc: Mr. N. L. Stampley                                                      '
Mr. R. B. McGehee
,
Mr. T. B. Conner Mr. victor Stello, DirectoA THIS COPY FOR Division of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555
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Latest revision as of 19:37, 31 January 2020

Provides Status of Potentially Reportable Deficiency Re Fractured Valve Body on Jacketwater Thermostatic Valve of Standby Diesel Generator.Magnetic Particle Examination Performed.Reportability Will Be Determined by 801010
ML19330A854
Person / Time
Site: Grand Gulf  Entergy icon.png
Issue date: 07/23/1980
From: Mcgaughy J
MISSISSIPPI POWER & LIGHT CO.
To:
References
AECM-80-166, NUDOCS 8007290655
Download: ML19330A854 (2)
v • d • e


Text

. ,

Y j MISSISSIPPI POWER S. LIGHT COMPANY Helping Build Mississippi miaMMudas P. O. B O X 16 4 0. J A C K S O N. MISSISSIPPI 39205 NUCLEAR PRoouCTioN oEPAMMENr July 23, 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

Dear Mr. O'Reilly:

SUBJECI: Grand Gulf Nulear Station Units 1 and 2 Docket Nos. 50-416/417 File 0260/15525/15526 PRD-80/35, Status Report #1, Standby Diesel Generator Jacket Water Cooler Thermostatic Valve Fracture AECM-80/166 On June 26, 1980, Mississippi Power & Light notified Mr. M.

Hunt of your office of a Potentially Reportable Deficiency (PRD) concerning the Standby Diesel Generator. The deficiency was a fractured valve body on the Jacket Water Thermostatic Valve.

Our investigation has not bec.n completed. All Jacket Water Ther=ostatic Valves for Units I and II have been subjected to magnetic particle examination. An additional Unit I valve was found to have a hairline linear indication. The Unit II valves were determined to be satisfactory. ,

Our Architect / Engineer is in contact with the diesel generator supplier to determine reportability, exact cause, and corrective actions. We expect to determine reportability and submit a final report by November VJ, 1980.

Yours truly,  !

g g J. P. McGaughy, Jr.

90/f FJ i

Assistant Vice President, ,$

Nuclear Production ATR:mt [ h 1

l 30o@9066 Member Middle South Utilities System j

MISSISSIPPI POWER & LIGHT COMPANY l

L J. P. O'Reilly AECM-80/166 Page 2 cc: Mr. N. L. Stampley '

Mr. R. B. McGehee Mr. T. B. Conner Mr. victor Stello, DirectoA THIS COPY FOR Division of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555

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