ML20085A212

Final Significant Const Deficiency Rept 54 Re Tube Steel Laminations.All Tube Steel W/Ht 16600 Replaced W/Acceptable Matl & Returned to Ebasco Warehouse,Per Nonconformance Rept W3-3304

ML20085A212
Person / Time
Site:	Waterford
Issue date:	06/23/1983
From:	Drummond F LOUISIANA POWER & LIGHT CO.
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, W3I83-0200, W3I83-200, NUDOCS 8307050170
Download: ML20085A212 (2)

Text

__________ - -

s o

I OUISIANA f 242 OuAnONOe stater POW E R & LiG H T/ P O BOX 6008

• NEW ORLEANS LOUISIANA 70174 * (504) 366-2345

$20$51sNU June 23, 1983 W3183-0200 ,

Q-3-A35.07.54 )

I Mr. John T. Collins, Regional Administrator, Region IV U. S. Nuclear Regulatory Commission -

rp 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76012 Mh h[h

]

SUBJECT:

Waterford SES Unit No. 3 Nl f Docket No. 50-382 Significant Construction Deficiency No. 54

~

g'

" Tube Steel (HT 16600) Laminations" Final Report

REFERENCE:

LP&L letter W3183-0175 dated May 16, 1033

Dear Mr. Collins:

In accordance with the requirements of 10CFR50.55(e), we are hereby providing two copies of the Final Report of Significant Construction Deficiency No. 54, " Tube Steel (HT 16600) Laminations".

If you have any questions, please advise.

Very truly,vours,

/ Wm F. J. Drummond Project Support Manager - Nuclear FJD/RWP/ MAL:keh cc: 1) Director 3) Mr. E. L. Blake Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington D. C. 20555

2) Director 4) Mr. W. M. Stevenson Office of Management Information and Program Control U. S. Nuclear Regulatory Commission Washington, D. C. 20555 r

8307050170 830623 PDR ADOCK 05000392 S PDR 1 b2.7

\

FINAL REPORT SIGNIFICANT CONSTRUCTION DEFICIENCY NO. 54

" TUBE STEEL (HT 16600) LAMINATIONS" INTRODUCTION This report is submitted pursuant to 10CFR50.55(e) . It describes material lamination defects discovered on tube steel (HT 16600) used in the fabrication of hangers and supports. This problem is considered reportable under the require-ments of 10CFR50.55(e). To the best.of our knowledge, this problem has not been identified to the Nuclear Regulatory Commission pursuant to 10CFR21.

DESCRIPTION Mercury Company of Norwood, Inc. (Instrumentation Contractor), through issuance of nonconformance report W3-3304, identified that a section of tube steel (HT 16600) used for the fabrication of hangers and supports had material lamination defects. This (HT 16600) tube steel used by Mercury was identified in the installation of seven (7) safety related hangers and supports. Also, Tompkins-Beckwith, Inc., the piping contractor, utilized this (HT 16600) tube steel in the fabrication of twenty-six (26) hangers and supports for safety related piping.

SAFETY IMPLICATIONS The impact on safety related systems could have been significant due to support failure and subsequent degradation of safety related systems.

CORRECTIVE ACTION TAKEN Nonconformance Report W3-3304 was used to identify, track and document all corrective action. This NCR was closed on May 24, 1983.

As stated in the disposition of Nonconformance Report W3-3304, all tube steel with HT 16600 has been replaced with acceptable material and returned to Ebasco's warehouse for scrapping with the exception of 18 feet which is estimated to have been used up in the fabrication of miters and drop offs.

This report is submitted as the Final Report.

, ,, t- , . ,