ML20198D460

Partially Withheld Assessment of Allegation AQ-61 to Allegation Category Qa/Qc 5A, Repair,Rework & Maint Re Supervisors Telling Welders to weld-up Gouged Hole Rather than Wait for Authorization

ML20198D460
Person / Time
Site:	Comanche Peak
Issue date:	06/07/1985
From:	Livermore H, Watson V NRC, NRC - COMANCHE PEAK PROJECT (TECHNICAL REVIEW TEAM)
To:
Shared Package
ML20198C597	List: IA-85-517, Partially Withheld Assessment of Allegation AQE-41 to Allegation Category Qa/Qc 6, QC Insp Re Worn Gauges Used to Calibr Lighting Restraint Cable Tools Resulting in Incorrect Installation & Issuance of Nonconformance Rept ML20198C594 ML20198C616 ML20198C640 ML20198C704 ML20198C711 ML20198C794 ML20198C831 ML20198C859 ML20198C871 ML20198C883 ML20198C897 ML20198C933 ML20198C974 ML20198D040 ML20198D103 ML20198D141 ML20198D170 ML20198D231 ML20198D267 ML20198D290 ML20198D314 ML20198D348 ML20198D373 ML20198D377 ML20198D391 ML20198D411 ML20198D419 ML20198D424 ML20198D427 ML20198D432 ML20198D437 ML20198D445 ML20198D450 ML20198D460 ML20198D471 ML20198D479 ML20198D487 ML20198D492 ML20198D507 ML20198D510 ML20198D523 ML20198D529 ML20198D534 ML20198D545 ML20198D554 ML20198D559 ML20198D565 ML20198D576 ML20198D585 ... further results
References
FOIA-85-59 NUDOCS 8605230282
Download: ML20198D460 (2)

Text

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1.

Allegation Cateoory:

QA/QC 5A, Repair, Rework, and Maintenance 2.

Alleoation Number: AQ-61 3.

Characterization:

It is alleged that supervisors told welders to weld-up a " gouged" hole rather than wait for the authorization that follows the engineering disposition of a discrepant condition.

4.

Assessment of Safety Significance:

The allegation concerning a " gouged" hole is addressed in Mechanical and Piping Category 1, allegations AW-38 and AQW-24.

In this assessment, the NRC Technical Review Team (TRT) examined the programmatic controls use to address weld repairs of this type.

The TRT found that specific written procedures define the criteria which determine when defects require major, minor, or inprocess welding repairs.

These procedures also included tables defining the required inspections for each type of weld fabrication.

The TRT found that welders were trained in the contents of the construction and welding procedures and that this training was updated as each procedure was revised. The TRT also found that weld technicians supervise the welding and serve as the first, unofficial, weld inspectors. Quality control personnel then inspected the welds and accepted them or identified defects requiring major or minor repairs.

Repair process sheets, which define the operational steps for making the repairs, were then generated for each weld repair.

5.

Conclusion and Staff Positions:

Based on a review of the applicable re-quirements governing weld repairs and on interviews with welders, the TRT concludes that this allegation is not substantiated.

The allegation that supervisors told welders to perform unauthorized repair is not addressed in this assessment and will be an open item to be followed up by the NRC staff.

In a meeting with the alleger on March 5, 1985, the Mechanical and Piping Group presented the results and conclusions of the assessments of AQ-61, AW-38, and AQW-24.

7.

Attachments: None.

Reference Documents:

1.

CP-CPM-6.9D, Rev. 6, " Welding and Related Processes," paragraph 3.19.

2.

CP-CPM-6.9G, Rev. 6, " Documentation for ASME Welding and Installation Activities," paragraph 3.3.3.

3.

Brown & Root weld procedure specifications 88023, 88025, and 11032.

5230282 860512 FOIA

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L9ARDE85-99.-_. P DR. _.

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4.

AQ-61: 'A-4 Testirrony, March 7, 1984, pages 10-18.

5.

A-4 meeting March 5, 1985, pp.94-102 and 171.

8.

This statement prepared by:

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(,//,/8S V. Watson, TRT Dat'e '

Technical Reviewer Reviewed by:

owca b 7- $ 5 Herbert Livermore, Date Group Leader Approved by:

Vincent Noonan, Date Project Director l

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