TXX-6761, Final Deficiency Rept CP-87-77 Re Inadequate Documentation of Cable Tray Welds.Initially Reported on 870826.Issue Not Reportable Per 10CFR50.55(e).Weld Installation,Metallurgy & Structure Adequate

Final Deficiency Rept CP-87-77 Re Inadequate Documentation of Cable Tray Welds.Initially Reported on 870826.Issue Not Reportable Per 10CFR50.55(e).Weld Installation,Metallurgy & Structure Adequate

ML20235G459
Person / Time
Site:	Comanche Peak
Issue date:	09/25/1987
From:	Counsil W TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
CP-87-77, TXX-6761, NUDOCS 8709300057
Download: ML20235G459 (2)

Text

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1UELECTRIC Ref # 10CFR50.55(e) )i William G. Counsil rumne v,ce n"*"'

September 25, 1987 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKET N05. 50-445 AND 50-446 CABLE TRAY WELD DOCUMENTATION REQUIREMENTS SDAR: CP-87-77 (FINAL REPORT)

Gentlemen: l l l On August 26, 1987, we verbally notified your Mr. H. S. Phillips of a potentially reportable item involving inadequate documentation of Cable Tray i Welds. This issue, identified during third party inspection, is addressed in  !

l Corrective Action Request (CAR)87-033. After further evaluation we have l determined that this issue is not reportable pursuant to the seguirements of I 10CFP50.55(e).

Weld documentation for cable trays normally consists of the inspection report ,

with the QC inspector signature, the welders identification symbol and weld l duplication information. This was true of weld documentation generated during 1 t1e early stages of Comanche Peak construction. However, during a review of these documentation packages it was determined that some of above information was missing from 21 items. Those 1 items were determined to be a special case and not the result of a generic problem.

Despite the missing documentation, adequate assurance exists that all fillet welds on cable tray fittings were performed t.:ing a single approved welding pr ocedure specification (No. WPS-10046), by welders qualified in accordance with a single specification (Welding Engineering 5 specification No. WES-031) for manual shielded metal are welding using E7018 electrodes. Considering the l circumstances, the lack of welder traceability to each individual fillet weld does not compromise the weld quality. The cable tray fillet welos produced in l accordance with WPS-10046/WE5-031 are metallurgically and structurally adequate for their intended purpose.

Weldina other than fillet welding was also identified on horizontal adjustable fittings. This welding was associated with temporary devices intended to f acilitate tray alignment during const ruction. These devices are being removed as noted per a reportable deficiency logged SDAR: CP-87-59.

8709300057 070925 PDR ADDCK 05000445 g S PDR q

MC North Ohve Street LB Si Dallas, Texas 75208

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TXX-6761 September 1987 Page 2 of 2 Based on the results of our evaluation this documentation problem does not represent a significant deficiency in the design or construction of the plant.

Had this documentation problem not been discovered, no condition adverse to safe operations would have existed. We have concluded that this issue is not reportable under the provisions of 10CFR50.55(e).

Very truly yours, (710 W. G. Counsil DAR/gj c - Mr. R. D. Martin, Region IV Resident inspectors, CPSES (3)

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