ML20079N003

Final Deficiency Rept PRD 139 Re Linear Indications in Reactor Coolant Pump Support Beams.Initially Reported on 831216.Condition Erroneously Identified.Deficiency Not Reportable Under 10CFR50.55(e)

ML20079N003
Person / Time
Site:	Waterford
Issue date:	01/17/1984
From:	Gerrets T LOUISIANA POWER & LIGHT CO.
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
W3K84-0101, W3K84-101, NUDOCS 8401270500
Download: ML20079N003 (2)

Text

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.. r 142 DELARONDE STREET pOWF R R I In H T! P O AOW ROO8 NFW OAl FANS. tntliclANA 70174

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$iuS$EsYEU January 17, 1984 W3K84-0101 Q-3-A35.07.

Mr. John T. Collins Regional Administrator, Region IV

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0 U. S. Nuclear Regulatory Commission JAN 20 W ,

611 Ryan Plaza Drive, Suite 1000 i Arlington, Texas 76012 L -

REFERENCE:

Telecon C. Hooper (LP&L) and R. Stewart (NRC % on IV) on December 16, 1983

SUBJECT:

Waterford SES Unit No. 3 Docket No. 50-382 Potentially Reportable Deficiency No. 139

" Reactor Coolant Pumps Support Beam, Linear Indications" Final Report On December 16, 1983, a problem with linear indications in the support beams of the Reactor Coolant Pumps was reported as Potentially Reportable Deficiency No. 139. Further evaluation of the previously described condition indicates this condition is not considered reportable pursuant to the requirements of 10CFR50.55(e). Reference telecon erroneously described indications as laminar vice linear.

EVALUATION The initial information, UT test results, was incorrectly evaluated. UT is not suitable for the accurate determination of the size and depth of the indications observed. Seven (7) linear indications exhibiting the most severe

" bleed out" during PT were explored by grinding and subsequent PT, six (6) indications were less than 1/32" in depth and one (1) indication was less than 1/8" in depth. Further exploration was not deemed necessary based on calculations using the 1/8" depth criteria. Based on the foregoing, PRD 139 is not considered reportable pursuant to 10CFR50.55(e).

Very truly yours, W

T. F. Gerrets Quality Assurance Manager TFG:CNH:SSTG 8401270500 840117 '(

PDR ADOCK 05000382 '

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Mr. Jihn.T. Collins

. January 17, 1984

. W3K84-0101 Page 2 g -: n cc: Director

0ffice of Inspection & Enforcement U..S. Nuclear Regulatory Commission Washington, D.C. ~20555 (15 copies)

Director Office of. Management Information and_ Program Control

, 'U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. E. L. Blake Shaw,~Pittman, Potts, & Trowbridge 1800 M Street, N.W.

Washington,~D.C. 20036-Mr. W. M. Stevenson Monroe & Lemann 1424 Whitney Building 1

New Orleans, Louisiana 70130 i

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