ML20087H186
| ML20087H186 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 03/09/1984 |
| From: | Gerrets T LOUISIANA POWER & LIGHT CO. |
| To: | Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 101, W3K84-0505, W3K84-505, NUDOCS 8403200276 | |
| Download: ML20087H186 (3) | |
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LOUISIANA P O W E R & L i G i
- T! P O BOX 6008
- NEW ORLcANS. LOUISTANA 70174 242 ouAnoNoe s1nter
- (504) 366-2345 UiluTIES SYSTEM Mars 1984 W3K84- 0505 Q-3-A35.07.101 33@20W2 %
4 Mr. John T. Collins MAR I 61984 Regional Administrator, Region IV U. S. Nuclear Regulatory Commission i
611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76012
REFERENCE:
a) Telecon C. N. Hooper (LP&L) and V. Crossman (NRC IV) dated January 23, 1984 b) Telecon C. N. Hooper (LP&L) and D. Hunnicut (NRC IV) dated February 22, 1984 c) Telecon C. N. Hooper (LP&L) and J. Tapfa (NRC IV) dated February 1, 1984
Dear Mr. Collins:
SUBJECT:
Waterford SES Unit No. 3 Docket No. 50-382 Significant Construction Deficiency No. 101
" Traceability of Stainless Steel (ss) Instrumentation Tubing" First Interim Report In accordance with the requirements of 10CFR50.55(e), we are hereby providing two copies of the Interim Report of Significant Construction Deficiency No.
101, " Traceability of Stainless Steel (ss) Instrumentation Tubing".
This item was previously report as PRD No. 144.
Very truly yours, mm k T. F. Gerrets Corporate Quality Assurance Manager TFG:CNH:VBR Attachment 8403200276 840309 PDR ADOCK 05000382 S
PDR,
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Mr.-John T. Collins March 9, 1984 W3K84-0505 Page 2 cc: Director Office 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 New Orleans, Louisiana 70130 Records Center Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 s
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FIRST INTERIM REPORT SICNIFICANT CONSTRUCTION DEFICIENCY NO. 101
" TRACEABILITY OF STAINLESS STEEL (SS) INSTRUMENTATION TUBING" INTRODUCTION This report is submitted pursuant to 10CFR50.55(e).
It describes th?
possibility that 0.049" stainless steel tubing could have been installed where 0.065" was specified. This possibility exists for both 3/8" and I.!2" S.S tubing. In addition, 1/4" G.D. S.S. nonsafety related tubing may have been installed in safety related systems.
To the best of our knowledge, this deficiency has not been reported to the USNRC pursuant to 10CFR21.
DESCRIFTION During review of documentation it was discovered that some S.S. tubing with a wall thickness of 0.049" had been received on site.
There is concern that it may have been installed where.065" wall is required.
In addition, this review discovered that 1/4" 0.D. S.S. tubing was purchased as non-safety related and may have been installed in safety related systems.
SAFETY IMPLICATIONS In some installations, the tubing installed may be insufficient to meet code-requirements and could result in failure of instruments required for plant parameter monitoring and safe shutdown, if left uncorrected.
CORRECTIVE ACTION TAKEN NCR's W3-7252 and W3-7538 have been initiated to track and document this deficiency.
Inspections and tests are proceeding to determine if the tubing installed is sufficient to meet code requirements in safety related systems. Upon completion of. inspection and testing, the results will be evaluated to determine appropriate corrective action.
An update or Final Report will be submitted on or before April 6.1984.
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