TXX-6296, Interim Deficiency Rept CP-86-36 Re Large Bore Piping & Supports.Initially Reported on 860609.Continued Engineering Evaluation Has Not Identified Addl Reportable Instances.Next Rept Will Be Submitted by 870410

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Interim Deficiency Rept CP-86-36 Re Large Bore Piping & Supports.Initially Reported on 860609.Continued Engineering Evaluation Has Not Identified Addl Reportable Instances.Next Rept Will Be Submitted by 870410
ML20211H385
Person / Time
Site: Comanche Peak  
Issue date: 02/20/1987
From: Counsil W
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
CP-86-36, TXX-6296, NUDOCS 8702260159
Download: ML20211H385 (2)


Text

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s Log # TXX-6296

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File # 10110 F.

903.9 L

C Ref. # 10CFR50.55(e)

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1UELECTRIC February 20, 1987 wmm c.c mi Executiw Vue l'resulem U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKETS NOS. 50-445 AND 50-446 LARGE BORE PIPING AND SUPPORTS SDAR:

CP-86-36 (INTERIM REPORT)

Gentlemen:

On June 9,1986, we verbally notified you of a reportable item involving the scope of plant modifications resulting from the project's pipe support reverification program (see TXX-4844). This is a follow-up interim report on a reportable item under provisions of 10CFR50.55(e). Our latest interim report logged TXX-6206 was submitted on January 8, 1987.

The continuing engineering evaluation has not identified any additional instances which are considered reportable pursuant to 10CFR50.55(e). The attached list shows the support modifications issued to date. The evaluation is continuing and we anticipate submitting our next report by April 10, 1987.

Very truly yours,

//

N7160 W. G. Counsil BSO/amb Attachment c - Mr. E. H. Johnson, Region IV Mr. D. L. Kelley, RI - Region IV Mr. H. S. Phillips, RI - Region IV 8702260139 870220 gDR ADOCK 05000445 PDR 400 North Olne Street I..it HI Dallas, lexas 75201

l TXX-6296 February 20, 1987 Attachment Page 1 of 1 ATTACHMENT LARGE BORE PIPE SUPPORT MODIFICATIONS Number of Unit Cateaory Modifications

  • 1 Prudent 870 Recent Industry Practice 1354 Adjustment 870 Cumulative Effects 1202 2

Prudent 1014 Recent Industry Practice 356 Adjustment 283 Cumulative Effects 546 Changes in these figures from the last report represent not only identification of further modifications but a reclassification and/or recategorization of certain supports.

Reductions in these figures from the previous report are due in part to tracking changes in the program.

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