ML20009G070

First Status Rept on Potentially Reportable Deficiency Re Failure of Test Connection Pipe Off HPCS Injection Line on Containment Side of Injection Valve,Initially Reported on 810527.Investigation Ongoing.Final Rept Expected by 811029

ML20009G070
Person / Time
Site:	Grand Gulf
Issue date:	06/29/1981
From:	Mcgaughy J MISSISSIPPI POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
10CFR-050.55E, 10CFR-50.55E, AECM-81-232, NUDOCS 8108030301
Download: ML20009G070 (4)

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, OFFICIAL copy MISSISSIPPI POWER & LIGHT COMPANY Helping Build Mississippi Emikkihtildde P. O. B O X 16 4 0. J A C K S O N. M I S S i s S I P.P R 3 9 2 0 5 J^j,ESf , G,H f June 29, 1981 Office of Inspection & Enforcement W\ b,

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U. S. Nuclear Regulatory Commission j). ' S,)g

'((k l,[L Region II Rf ' ,

T' 101 Marietta Street, N.W.

Suite 3100 DQ 1 q-j -

Atlanta, Georgia 30303 Q JUL" 1,"g ,Li ,

Attention: Mr. J. P. O'Reilly, Directar f\A p.L @EsN ,,Q A 0,. I

Dear Mr. O'Reilly:

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SUBJECT:

Grand Gulf Nuclear Station Units 1 and 2 Docket Nos. 50-416/417 File 0260/15525/15526 2RD-81/28, Status Report #1, HPCS Vessel Inspection Test Connection Failure AECM-81/232 On May 27, 1981, Mississippi Power & Light Company notified Mr. F. S.

Cantrell, of your office, of a Potentially Reportable Deficiency (PRD) at the Grand Gulf Nuclear Station (GCNS) construction site. The deficiency concerns the failure of a test connection pipe off the HPCS injection line on the containment side of the RPCS injection valve (QIE22-F004)

We have not completed our investigation to determine reportability. We expect to submit a final report by October 29, 1981.

Yours truly,

/

J. P. McGaughy, Jr.

ATR:dr ATTACHMENT cc: See page 2 8108030301 810629 PDR ADOCK 05000416 hI k

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S PDR Member Middle South Utilities System

i, Mr. J. P. O'Reilly AECM-81/232 NRC Page 2 cc: Mr. N. L. Stampley Mr. R. B. McGehee Mr. T. B. Connee

! Mr. Victor Stello, Director Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. G. B. Taylor South Miss. Electric Power Association P. O. Box 1589 Hattiesburg, MS 39401 1

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bec: Dr. D. C. Gibbs Mr. J. N. Wara Mr. J. P. McGaughy Mr. W. A. Braun Mr. R. Trickovic Mr. J. W. Yelverton Mr. L. F. Dale Mr. C. K. McCoy Mr. T. H. Cloninger Mr. R. A. Ambrosino Mr. R. C. Fron Mr. G. B. Rogers Mr. M. R. Williams Mr. L. E. Ruhland Mr. D. L. Hunt Mr. A. C. Wagner Mr. P. A. Taylor PRD File File *-

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• Attachment to AECM-81/232 o Pags 1 of 1 STATUS REPORT 41 TO PRD-81/28

1. Description of Deficiency While running HPCS vessel injection testing at 40% at rated flow for the collection of pipe vtbration data, the test connection on the containment side of valve F004 was found broken off. The small pipe break occurred between valve F021 and the branch cennection to the injection piping.

II. Approach to Resolution of the Preblem A. An investigation is to be conducted to determine:

1. The cause of the deficiency.

2. The extent of the deficiency.

B. Based on the results of the above investigation, an evaluation will be made to determine:

1. Reportability under 10CFR50.55(e) and 10CFR21.

2. Corrective actions to preclude recurrence.

3. P.emedial actions to correct this deficiency and others, if any, identified during the investigation.

III. Status of Proposed Resolution The investigation is in progress by our Architect / Engineer. To date, neither the cause nor the extent of the deficiency have been determined.

It does appear, however, that the deficiency is limited to the non-NSSS scope of supply. .

IV. Reason Why a Final Report Will Be Delayed The investigation into the cause and extent of the deficiancy has not been completed.

V. Date Whea a Final Report Will Be Submitted We expact to submit a final report by October 29, 1981.

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