ML19345A950

Second Interim Deficiency Rept Re Procedural Violation in Cutting Rebar,Initially Reported on 800602.Constructor Issued Stop Work Order.Method to Evaluate Unlogged Cut Rebar Is Being Developed.Final Rept Will Be Provided by 810801

ML19345A950
Person / Time
Site:	Grand Gulf
Issue date:	11/17/1980
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-80-286, NUDOCS 8011250466
Download: ML19345A950 (3)

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- MISSISSIPPI POWER & LIGHT COMPANY Helping Build Ali:sissippi P.O. BOX 164 0. J AC K S O N MIS SIS SIP PI 3 9 2 0 5..

November 17,'1980- .-

T[sS[$((E"s7ch" b

Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission --

Region II 101 Marietta Street, N.W.

j Suite 3100 l Atlanta, Georgia 30303 Attention: Mr. J. P. O'Reilly, Director

Dear Mr. O'Reilly:

t

SUBJECT:

Grand Culf Nuclear Station Units 1 and 2

' Docket Nos. 50-416/417 File 0260/15525/15526 PRD-80/30, Status Report #2, Procedural Violation in

- Cutting Rebar AECM-80/286 on June 2, 1980, Mississippi Power & Light Company notified Mr. M. Hunt of your office of a Potentially Reportable Deficiency [

1 (PRD) at the Grand Gulf Nuclear Station (CCNS) construction site.

The deficiency concerns the cutting of rebar in violation of pro-

! cedures. This deficiency was noted during Mr. Hunt's site inspec-j tion 416-80/12 of May 27-30, 1980.

5 Our progress in the investigation into the extent and scope of the deficiency is provided in the attached status report.

Na expect to submit a determination of reportability and final j report on this deficiency by August 1, 1981.

Yours truly, l

f /

g y J. P. McGaughy, Jr.

EWC:mt Attachment

/!

cc: Mr. N. L. Stampley Mr. Victor Stello, Director- '

Mr. R. B. McGehee Division of Inspection & Enforcement i Mr. T. B. Conner U. S. Nuclear Regulatory Commission

!- Washington, D.C. 20555 i

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8 011250 Dr

. Member Middle South Utilities System

I

. Attachment te ACCM-80/286 Page 1 of 2 STATl:S REPORT #2 TOR PPJ)-80/30 1

1. Description of the Deficiency During an NRC inspection visit to the site on May 27-30, 1980, it was found that rebar was cut in the Diesel Generator Building with-out being documented in accordance with work plan / procedure WP/P-C-24. The rebar had been cut during the installation of cencrete expansion anchors for support of electrical equipment. A Notice of Violation was issued to MP&L as a result. Potential Reportable Deficiency (PRD) S0/30 was issued as a tracking mechanism for this a nonconformity.

l LI. Resolution of Deficiency As an immediate action in response to the deficiency, our Ccnstruc-tor issued a Stop Work. At char time, the procedures were judged d

adequate, and it appeared that the retraining of the crafts, super-

vision, and field engineers along with the establishment of a log in the electrical sector were suf ficient actions to assure program

, compliance. The training was performed, and the Stop Work was lifted. Later, in addition to the training, the wording of the pro-cedures was clarified to more precisely define the approval author- l ities required for rebar cutting. Sequential numbers on approval j forms and a standarized form were other improvements added.

A detailed investipation compiled f rom the various disciplines (civil, electrical, instrumentation, and subcontractors) provided a record of the cut rebar logs in existence. However, in the case identified in the notice of violation, no record was being main-2 tained and the cut rebar was logged only af ter the initiation of the investigation. The Constructor's Field Engineering has con-cluded that the electrical, instrumentation, and subcontractor dis-ciplines may not have reported all cases of cut rebar.

4 Ill. Status The analysis regarding the ef fect on safety of the cited cut rebar is in progress, but has not yet been determined. The Constructor's Field Engineering is currently working with their Project Engineering to develop a mothed to evaluate the unlogged cut rebar that may exist.

IV. Reasons for Delaying Final Report

! The Constructor's Project Engineering and Field Engineering organi-

! eations have not yet developed a method for evaluating tho unreported

-cut rebar that may exist. The probable approach to this problem will be to compare the "as built" configuration of structural sur-faces to the instances reported of cut rebar, te identify the dif-forences between the two, and to analyze their impact en structural integrity on a worst case basis.

P

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.it t ac tuacu t I o M.C'-Sti/2:in Page 2 of 2 i,

V. Projected Final Report Submittal Date Although our investigation of the extent of unreported cut rebar is not yet complete, full compliance for new work has beer. achieved.

l k'e expect to submit a determination on reportability and a final report on August 1, 1981.

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