ML20079F847

Final Rept Re Welding Deficiencies in Steel Door Frame Fabrication.Rejectable Defects Repaired & re-examined for Acceptability.Deficiency Determined Not Reportable Under 10CFR50.55(e)

ML20079F847
Person / Time
Site:	Satsop
Issue date:	05/28/1982
From:	Leddick R WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
10CFR-050.55E, 10CFR-50.55E, GO3-82-550, NUDOCS 8206080233
Download: ML20079F847 (3)

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fElj?D Washington Public Box 1223 Elma, Washington Power 98541 Supply System.m" El'S g,j (206)482-4428 Docket Numbers 50-508 and 50-509 Wultl;',,,

May 28, 1982 d G03-82-550 U. S. Nuclear Regulatory Commission, Region V Office of Inspection and Enforcement 1450 Maria Lane, Suite 260 Walnut Creek, California 94596-5368 Attention: Mr. T. W. Bishop Acting Chief, Reactor Construction Projects Branch

Subject:

PROJECT NOS. 3 AND 5 POTENTIAL 10CFR50.55(e) DEFICIENCY WELDING DEFICIENCIES, STEEL D0OR FRAME FABRICATION (D/N #039)

In accordance with the provisions of 10CFR50.55(e), Region V was noti-fied that the subject condition was potentially reportable. Subsequent investigation has deteri.ined that the deficiency is not significant and, were it to have remained uncorrected, it would not have adversely affected the safety of operations of the facility. Therefore, the defi-ciency is not reportable under 10CFk50.55(e).

Attached is the Supply System approved final report for the subject condition detailing a description of the deficiency, corrective / pre-ventive actions taken and a safety analysis.

Should you have any questions or desire further information, please contact me directly.

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as R. S. Leddick, 760 Program Director, WNP-3 DRC/tt Attachment cc: J. Adams - NESCO D. Smithpeter - BPA Ebasco - New york WNP-3/5 Files - Richland 8206080233 820528 iIff' /

PDR ADOCK 05000508 S PDR

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' Attachment to G03-82-550 May 28,1982 I WASHINGTON PUBLIC POWER SUPPLY SYSTEM WNP-3/5 t FINAL REPORT OF 10CFR50.55(e) POTENTIALLY REPORTABLE CONDITION WELDING DEFICIENCIES, STEEL DOOR FRAME FABRICATION (D/N #039)

Description of the Deficiency:

Door frames for the WNP-3/5 Reactor Auxiliary Buildings and Fuel Handling Buildings were fabricated and provided by Fought Steel of Portland, Oregon in accordance with Contract 3240-95. During Ebasco VQAR inspection of the last shipment of the fabricated door frames, it was found that the fabri-cator had not fulfilled the contract specification requirements for full penetration Tee Welds. The contract specifications required all full pene-tration Tee Welds to be examined with magnetic particle or liquid penetrant examination; however, this was not accomplished on any of the door frames.

The fabricator only performed a visual examination. 'Since receipt at WNP-3/5, 48 frames have been embedded in concrete. This presented the following potential problems:

1. Questionable soundness (acceptability) of full penetration Tee Welds.

2. A breakdown in Vendor Quality Assurance inspection prior to re-leasing the doors from Fought Steel. This breakdown was in two areas as follows:

a. During their quality control inspection, the Vendor's QA/QC personnel failed to detect the lack of required NDE and weld defects noted below,

b. The Ebasco VQAR also failed to detect the same deficiencies during their review of the fabricated steel documentation.

Additionally, other types of hardware nonconformances on the frames which were not installed were identified as follows:

Undercut, undersize and oversized welds, noncontinuation of welds around corners, cold laps, weld splatter within 1/2" of weld mater-ial, slag inclusions, arc strikes and porosity in the welds.

Analysis of the Safety Implications:

The Engineer's (Ebasco) QA personnel performed UT examinations on all questionable welds on the 48 installed frames. Welds on 44 of the frames were found acceptable; however, four frames were found to have less than the specified weldment. Ebasco Engineering analyzed the four deficient frames, on the basis of actual weldment and design loadings, and found them to be acceptable as installed. Consequently, the deficiencies were not significant and, if they were to have remained uncorrected, would not have adversely affected the safety of operations of the facility.

Based on this analysis, the deficiencies are not reportable in accordance with 10CFR50.55(e).

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. AttacRment to G03-82-550 May 28, 1982 Page 2 Corrective Actions:

1. All frames at the site that had not been installed were returned to the vendor's shop for reinspection and repair of deficiencies in accordance witn purchase order requirements. All full penetration welds that did not receive the required PT or MT examination were examined by UT. Rejectable defects were repaired and re-examined for acceptability.

As previously noted in the " Analysis of Safety Implications," UT examinations were performed on all questionable welds on the 48 in-stalled frames. Four were found to have less than the specified weld-ment and were analyzed for actual loading conditions. The resultant calculations revealed that the existing welds were sufficient for the design function. Therefore, the frames were accepted as installed, and further corrective action was not required for the installed frames.

2. The contract for the supply of these components is being closed out.

Since components will not be supplied by Fought Steel in the future, corrective action to preclude recurrence has not been imposed on the supplier. Fought, however, has been informed of the deficiencies.

On-site training sessions were held for the Vendor Quality Assurance Representatives (VQARs). The training consisted of visual welding inspection requirements. Additionally, vendor inspection plans have been reviewed to assure NDE verification as required.

3. The additional welding deficiencies (hardware nonconformances iden-tified in the " Description of Deficiency") were repaired and the frames were reinspected and accepted.

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