ML20150D592

Safety Evaluation Re NRC Welding Category, Welding Procedures. Concern Has No Effect on Hardware & of No Concern to Public Health & Safety

ML20150D592
Person / Time
Site:	Sequoyah
Issue date:	03/11/1988
From:	NRC OFFICE OF SPECIAL PROJECTS
To:
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References
NUDOCS 8803240375
Download: ML20150D592 (2)

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5 WASHINGTON, D. C. 20555 SAFETY EVALUATION BY THE OFFICE OF SPECIAL PROJECTS SE000YAH NUCLEAR POWER PLANT, UNITS 1 AND 2 NRC WELDING CATEGORY - WELDING PROCEDURES I.

SUBJECT NRC Essential Element "Welding Procedures" TVA Category: WELDING TVA Subcategories: WE 50822 The employee concerns were evaluated by TVA as potentially safety related and epplicable to the Sequoyah site or as potentially applicable to the Sequoyah site en a generic basis.

The staff believes that there are five essential elements which must be functioning for a welding program to be viable.

The staff placed each of the individual employee concerns into one of these essential element categories. A miscellaneous grouping was established to cover those employee concerns which are not directly related to the welding program at the Sequoyah site, or are not easily placed in one of the essential 1

element categories.

These program essential element categories a'e as follows:

Welding Procedures Welder Qualif! cation / Training Welding Inspection Weld Design and Configuration Filler Material Control Hiscellaneous/One of a Kind The staff evaluated each individual employee concern and assigned it to one of these essential elements.

None of the employee concerns considered by October 1986 (first draft of the Welding SER) were assigned to the NRC essential element category "Welding Procedures."

Subsequently the following concern was assigned by TVA a generic label, and was, therefore, applicable to the Sequoyah site.

TVA FINAL ELEMENT EMPLOYEE REPORT RESPONDING CONCERN NO.

TO CONCERN BRIEF DESCRIPTION OF CONCERN JLH-85-003 WP-22-SQN Inadequate weld procedure II.

SUMMARY

OF ISSUES The issue involved with the employee concern JLH-85-003 covered in WP-22-SON is sumarized as follows:

8803240375 880311 DR ADOCK 050 8

2-Inadecuate weld procedure and/or failure to include er reference a weld detail drawing in the work package.

Ill. EVALUATION The concern as stated is misleading.

The licensee had established a procedure for a routine task involving welding.

The issue can be described as a minne work package drawing omission which was corrocted by adding a note to the data sheet referencing the applicable standard drawing for installing a plug to an access hole for radiography, a routine pipe welding task Although the action taken by TVA to resolve this particular incident is acceptable, there remains the question of this being another example of the drawings not reflecting the as-built status of fabrications.

There are many other examples of drawings not showing the as-built conditions, and this is being addressed by TVA's Design Base Verification Program.

!Y.

CONCLUSION The staff concludes that this concern had no effect on hardware and is of no concern to,public health and safety.

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