ML20072E729

Interim Significant Const Deficiency Rept 84 Re Tube Track Welding Not Meeting Aws D.1.1 requirements.FCR-ICP-561 R-1 Issued on 830511 by Ebasco Engineering to Provide Corrective Action Guidelines.Final Rept Expected by 830831

ML20072E729
Person / Time
Site:	Waterford
Issue date:	06/15/1983
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, 84, W3I83-0214, W3I83-214, NUDOCS 8306270127
Download: ML20072E729 (3)

Text

r I 142 DELARONDE STREET 1

P O W E R & L 1 G H T! P O BOA 6008 . NEW ORLEANS.. (504) LOUISIANA 366 2345 70174 UiluTIES SYSTEM June 15, 1983 W3I83-0214 Q-3-A35.07.84 Mr. John T. Collins, Regional Administrator, Region IV U. S. Nuclear Regulatory Commission  ;

((

.' \ f T ~~ ~

- ~2W i , ! ;,

611 Ryan Plaza Drive, Suite 1000 s D:: 6 Arlington, Texas 76012 JtJN 2 0198 l'

\

l

SUBJECT:

Waterford SES Unit No. 3 Docket No. 50-382 L -- h i

Significant Construction Deficiency Report No. 84

" Tube Track Welding Deficiencies" First Interim Report

Reference:

Telecon from M. A. Livesay to W. A. Crossman on May 16, 1983

Dear Mr. Collins:

In accordance with the requicements of 10CFR50.55(e), we are hereby providing two copies of the Interim Report of Significant Construction Deficiency No. 84, " Tube Track Welding Deficiencies". This item was originally identified as Potentially Reportable Deficiency No. 117.

Very truly yours,

/ wm F. J. Drummond FJD/ MAL /grf cc: 1) Director 2) 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 Conmission Washington, D. C. 20555 8306270127 830615 PDR ADDCK 05000382 _[b-17 S PDR

/f/

7-f INTERIM REPORT OF SIGNIFICANT CONSTRUCIION DEFICIENCY NO. 84

" TUBE TRACK WELDING DEFICIENCIES" INTRODUCTION This report is submitted pursuant to 10CFR50.55(e). It describes welding deficiencies on tube tracks used for the routing and support of instrumen-tation lines in safety related systems.

To the best of our knowledge, this deficiency has not been reported to the USNRC pursuant to 10CFR21.

DESCRIPTION During sample inspection of instrumentation tube track welding, it was discovered that the welding did not meet AWS Dl.1 requirements. Also,

- the welders who were qualified to weld in accordance with Mercury welding procedure WPS-B which requires a backing strap to initiate the welding, were not using the backing strap (i.e.: open butt welding). At the present time, Ebasco Engineering has completed the evaluation of this deficiency and has authorized corrective actions described below.

SAFETY IMPLICATIONS The tube track in question supports the instrumentation tubing for safety related systems. The subject tubing leads to instruments that are required for plant parameter monitoring and safe shutdown of the plant.

If the subject deficiencies were lef t uncorrected, degradation could occur resulting in failure of the instruments to provide reliable information required by the reactor. operators.

_ CORRECTIVE ACTION TAKEN Nonconformance Report W3-6159 was initiated to track and document this defi-ciency.

FCR-ICP-561 R-1 was issued May 11, 1983 by Ebasco Engineering to provide guidelines for implementation of corrective action.

An update or Final Report will be submitted to the USNRC on or before l, August 31, 1983.

I

F

, INTERIM REPORT OF SIGNIFICANT CONSTRUCTION DEFICIENCY.No. 84

" TUBE TRACK WELDING DEFICIENCIES" INTRODUCTION This report is submitted pursuant to 10CFR50.55(e). It describ.u welding deficiencies on tube tracks used for the routing and support of instrumer-tation lines in safety related systems.

To the best of our knowledge, this deficiency has not been reported to the USNRC pursuant to 10CFR21.

DESCRIPTION During sample inspection of instrumentation tube track welding, it was discovered that the welding did not meet AWS D1.1 requirements. Also, the welders who were qualified to weld in accordance with Mercury welding procedure WPS-B which requires a backing strap to initiate the welding, were not.using the backing strap (i.e.: open butt welding) . At the present time, Ebasco Engineering has completed the evaluation of this deficiency and has authorized corrective actions described below.

~ SAFETY INPLICATIONS The tube track in question supports the instrumentation tubing for safety related systems. The subject tubing leads to instruments that are

. required for plant parameter monitoring and safe shutdown of the plant.

If the ' subject deficiencies were lef t uncorrected,' degradation could occur.

resulting in failure of the instruments to provide reliable information

. required-by the reactor operators.

CORRECTIVE ACTION TAKEN Nonconformance Report W3-6159 was initiated to-track and document this defi-ciency.,

FCR-ICP-561 R-1 wa) issued May 11, 1983 by Ebasco Engineering to provide guidelines for implementation of corrective action.

'An update or Final Report will be submitted to the USNRC on or before August 31, 1983.