ML19336A694

Part 21 Rept Re Reactor Controls,Inc Pipe Supports.Tube Steel Substituted for Angle.Pipe Clamps Discovered Broken Away from Supported Pipe.Evaluation Underway.Final Rept Will Be Filed by 810121

ML19336A694
Person / Time
Site:	Grand Gulf
Issue date:	10/13/1980
From:	Mcgaughy J MISSISSIPPI POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-PT21-80-298-000 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8010300497
Download: ML19336A694 (3)

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ORIGIIML REPORT y SU?PLGBHARY DISTRIBUTION:

REACTOR (R) y FIEL CYCE &

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E m,1 E P. O. B O X 16 4 0. J A C K S O N. MIS SISSIPPI 39205 October 13, 1980 JAVES P. McGAUGHY, JfL Amst ANT V4Cf PRE $1 DENT Office of Inspection & Enforcement U. S. Nuclear Regulator,f 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-80/56, Status Report, RCI g

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Pipe Supports AECM-80/251 On September 12, 1980, Mississippi Power & Light Company noti-fled Mr. M. Hunt of your office of a Potentially Reportable Defi-ciency (PRD) at the Grand Gulf Nuclear Station (GGNS) construction site. The deficiency concerns seismic piping supports installed by Reactor Controls, Inc. (RCI) for the control rod drive hydraulic system. The installation of this piping was not in accordance with the original design.

We are working with the constructor to determine reportability of this item under 10CFR50.55(e) and 10CFR21.

Our Status Report is attached. We expect to send you our filial report on this matter by January 21, 1981.

Yours truly, l

[ # J. P. McGaughy, Jr.

WDH:mt Attac' ment cc:

Mr. N. L. Sta=pley Mr. Victor Stello, Director Mr. R. B. McGehee Division of Inspection & Enforcecent Mr. T. B. Conner U. S. Nuclear Regulatory Commission Washington, D.C.

20555 Member Middle South Utilities System

i STATUS REPORT FOR PRD-80/56 1.

Description of the D'ficiency e

Pipe supports for the Control Rod Drive (CRD) System were installed by Reactor Controls, Inc. with the rollowing nonconformances I

with the original design noted:

1.

Tube steel wa; substituted for angle; 2.

Plates which were not shown on the applicable drawings were welded to the tube steel at the attachment to the embeds.

These welds were only on three sides, and the fourth side extended beyond the embed; 3.

Pipe clamps were discovered broken away from the pipe being supported; 4.

Hangers were installed with several pipe support items missing which were called for on the applicable drawings.

II.

Proposed Resolution of the Deficiency Mississippi Power & Light Company is working with the construc-l tor to evaluate this deficiency and to make the following de-terminations:

1.

The cause, including the extent of the problem; 2.

Corrective action \\to be taken; 3.

Action to preclude' recurrence; 4.

Effect on the safety of plant operation:<..

Our decision as to reportability under 10CFR50.55(e) and 10CFR21 will be based on the above items.

III.

Status of Proposed Resolution The constructor has written Reactor Controls, Inc. and requested them to reply to the noncomformance reports issued against this deficiency (QAR F-210 and Qt.R F-232).

These inputs should be available to MP&L for evaluation in Decem-ber 1980.

IV.

Reason for Delay in Final Report f

The evaluation is not complete.

j V.

Final Report Date We expect to file our final report by January 21, 1981.

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