ML20070K828

Final Rept of Significant Const Deficiency 41 Re Unapproved Welding.Attachment Weld Removed & Rewelded W/Approved Procedures.Two Temporary Welds Removed & Base Metal Repaired & Found Acceptable

ML20070K828
Person / Time
Site:	Waterford
Issue date:	12/21/1982
From:	Maurin L, Mourin L LOUISIANA POWER & LIGHT CO.
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, W3I82-0140, W3I82-140, W3S82-140, NUDOCS 8212300288
Download: ML20070K828 (3)

Text

_ _ _ - - _ _ _ _ __ ,

. N ,\

t \ '\

r una \

\

q LOUISIANA 242 OELAnONOE srnar u.

POWER & L1GHT P O BOX 6008

• NEW ORLEANS. LOUISIANA 70174 . 1504) 366 2345

=ntisswa L V MAURIN December 21,1982Voce President Nuclear Operations W3182-0140 i Q-3-A35.07.41 Mr. John T. Collins, Regional Administrator, Region IV U. S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76012

SUBJECT:

Waterford SES Unit No. 3 Docket No. 50-382 Significant Construction Deficiency No. 41

" Unapproved Welding" Final Report

REFERENCE:

LP&L letter No. W3182-0037 dated September 17, 1982

Dear Mr. Collins:

In accordance with thc requirements of 10CFR50.55(e), we are hereby providing two copies of the Final Report of Significant Construction Deficiency No. 41, " Unapproved Welding."

If you have any questions, please advise.

1 Very truly yours,

} { __ g 7/

L. V.Maurin LVM/ MAL:keh Attachment cc: 1) Director 3) E. Blake Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 (with 15 copies of report)

2) Director 4) W. Stevenson Office of Management Information and Program Control U. S. Nuclear Regulatory Commission Washington, D. C. 20555 (with I copy of report) 8212300288 021221 PDR ADOCK 05000382 g PDR

a h,h -

,,\\

g 27 882

, LOUISIANA 442 Ot<AnONOc Sincer P O W E R & L 1 G H T! P O BOX 6008

• NEW OnLEANS. LOUISIANA + (504) 366-234570174

$PUSNdYS L. V MAURIN December 21,1982%ce Preswient Nuclear Operatens W3I82-0140 Q-3-A35.07.41 Mr. John T. Collins, Regional Administrator, Region IV U. S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76012

SUBJECT:

Waterford SES Unit No. 3 Docket No. 50-382 Significant Construction Deficiency No. 41 l " Unapproved Welding" Final Report

REFERENCE:

LP&L letter No. W3182-0037 dated September 17, 1982

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. 41, " Unapproved Welding."

If you have any questions, please advise.

Very truly yours,

} { _} 7 MG L. V.Maurin LVM/ MAL:keh Attachment cc: 1) Director 3) E. Blake Office of Inspection & Enforcement j U. S. Nuclear Regulatory Commission

( Washington, D. C. 20555 (with 15 copies of report)

2) Director 4) W. Stevenson Office of Management Information and Program Control U. S. Nuclear Regulatory Commission Washington, D. C. 20555 (with I copy of report) 6212300288 821221 l PDR ADOCK 05000382 1

g PDR N5hk

s i a

SCD 41 Page 2 SAFETY IMPLICATIONS (cont'd)

An additional concern is the steam system piping failures have the potential to release significant amounts of radioactive material. This release in radioactive material, caused by primary-secondary leakage, presents a safety hazard.

NCR-W3-3206 - The same potential problem described in NCR-W3-3202 exists i in this case. Failure could reduce feedwater flow to the steam generator, l causing a reactor coolant system heatup. This RCS heatup has the potential i to cause core damage. Therefore, if the defective welds are not properly l removed, the safety of the plant could be adversely affected.

CORRECTIVE ACTION TAKEN The " Unapproved Welding" per this Significant Construction Deficiency was identified, dispositioned and corrected per the three (3) following Non-conformance Reports:

1. NCR-W3-2971, Rev. 1: The twelve (12) attachment welds were removed and rewelded with approved procedures and personnel. The welds were examined and found acceptable. The NCR was reviewed, accepted and closed December 7,1982.

2. NCR-W3-3202: The one (1) temporary attachment weld was removed and the base metal was repaired, examined and found acceptable. The NCR was reviewed, accepted and closed September 25, 1982.

3. NCR-W3-3206: The or.e (1) temporary attachment weld was removed and the base metal was repaired, examined and found acceptable. The NCR was reviewed, accepted and closed October 1, 1982.

This report is submitted as the Fiaal Report.

} 'gh .l:[~' . (.f . - l l , ' .[_I[l N. ;l'N?Y' Af~'?,,lf.?f5Lf.Nh.hh

.