IR 05000498/1986011

Insp Repts 50-498/86-11 & 50-499/86-11 on 860428-0515.No Violation or Deviation Noted.Major Areas Inspected: Structural Steel Welding & Licensee Action on Previously Identified Insp Findings

ML20211G434
Person / Time
Site:	South Texas
Issue date:	06/06/1986
From:	Gilbert L, Ireland R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:
Shared Package
ML20211G432	List: IR 05000498/1986011 ML20211G428
References
50-498-86-11, 50-499-86-11, NUDOCS 8606190413
Download: ML20211G434 (4)

Text

{{#Wiki_filter:* . I APPENDIX U.S. NUCLEAR REGULATORY COMMISSION REGION IV , NRC Inspection Report: 50-498/86-11 Construction Permits: CPPR-128 50-499/86-11 CPPR-129 Dockets: 50-49ff 50-499 Licensee: Houston Lighting & Power Company P. O. Box 1700 Houston, Texas 77001 Facility Name: South Texas Project, Units 1 and 2 Inspection At: South Texas Project, Matagorda County, Texac Inspection Conducte'd: April 28 through May 15, 1986

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Inspector: [[.Ms/ L. D. Gilbert, Reactor Inspector, Engineering 6/4/f4 Dite

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Section, Reactor Safety Branch Approved: [[.M R. E. Ireland, Chief, Ehgineering Section, 4/4/p'4 Ddte Reactor Safety Branch Inspection Summary Inspection Conducted April 28 through May 15, 1986 (Report 50-498/86-11; 50-499/86-11) Areas Inspected: Routine,~ unannounced inspection of structural steel welding and licensee action on previously identified inspection finding Results: Within the two areas inspected, no violations or deviations were identifie PDR ADOCK 00000498 G ppg

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DETAILS Persons Contacted Principal Licensee Employees

*J. H. Goldberg, Group Vice President, Nuclear
*J. E. Geiger, Manager, Nuclear Assurance
*T. J. Jordan, Project QA Manager
*G. B. Rogers, Construction Manager
*S. M. Dew, Project Manager Other Personnel EBASCO Services Inc. (ESI)
*A. M. Cutrona, QA Manager
*R. G. Peck, Deputy QA Manager F. G. Miller, Welding Superintendent L. Gunther, Corporate Welding Engineer K. W. Silverthorne, Assistant Welding Superintendent The NRC inspector also interviewed other licensee and contractor employees during the course of the inspectio * Denotes those attending the exit intervie . Licensee Action on Previously Identified Inspection Findings (Closed) Violation (498/499-8601-01): Failure to follow procedures for signing off QC hold points for postweld heat treatmen The NRC inspector reviewed the corrective steps which included:

0 the determination of the scope of the problem, o the issuance of a nonconformance report to track the completion of postweld heat treatment on weld MS 100-FW0054,

o the issuance of a standard deficiency report to correct the Process Data Checklist for welds MS 1002-FW0052 and MS 2002-FW0052, o the reinstruction of the appropriate QC personnel, and o the instruction of the site Integrated Records Group reviewers to the revised Quality Record Document Review Shee This item is considered close ..

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3. Welding of Structural Steel Review of Procedures The NRC inspector reviewed the following procedures to assure that adequate controls have been established relative to welding of structural steel: o Standard Site Procedure SSP-16, General Structural Welding Requirements o ESI Procedure WP-5, Welding Procedure Specification o ESI Procedure WP-9, Welding Procedure Specification o ESI Procedure WP-10, Welding Procedure Specification o ESI Procedure WP-24, Welding Procedure Specification o ESI Procedure WP-43, Welding Procedure Specification o ESI Procedure WP-44, Welding Procedure Specification o ESI Procedure WP-50, Welding Procedure Specification o ESI Procedure WP-68, Welding Procedure Specification o ESI Procedure WP-111, Welding Procedure Specification o ESI Procedure WP-119, Welding Procedure Specification o ESI Procedure WP-1169, Welding Procedure Specification The NRC inspector identified to ESI his concern about some discrepancies between Weld Procedure WP-111 and the ESI Welding Procedure Identification Sheet, Form 84 Part F, in the areas of material specifications and preheat requirements. ESI reviewed the material specifications used at STP for construction of structural steel and determined that certain material specifications could be deleted or restricted for thicknes ESI issued a change to WP-111 and Form 84 Part F to resolve the discrepancies in material specifications and preheat. The clarifications provided by the changes to WP-111 and Form 84 Part F adequately address the concern expressed by the NRC inspecto Observation of Welding Activities The NRC inspector observed the welding and quality control activities of ESI associated with fabricating thirty category A Joint welds and 13 category B Joint welds in Unit 1 and 50 category A Joint welds in Unit 2.

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In the areas-inspected for the above welds, the welding was accomplished in accordance with the welding procedure; the entries on the weld record for releasing QC hold points were consistent with the status of the weld; the welding filler materials were controlled consistent with SSP-30; welders were qualified for the procedure being used for welding; and with the exception of a small portion of one fillet weld being undersize, all completed welds were consistent with the visual acceptance criteria of SSP-16 for structural weld The fillet weld that had been ground undersize in excess of 1/16 inch for approximately 10 percent of the length of the weld was documented for tracing and disposition by ESI QC on NCR CC0352 ESI QC performed a reinspection of 30 additional welds of similar configuration and found no discrepancies on the size of the welds from the size required by the drawing. Based on the above inspection and the reinspection by QC, the undersized weld is considered to be an isolated case of inadvertent grindin No violations or deviations were identifie . Exit Interview The NRC inspector met with licensee representatives (denoted in paragraph 1) and Mr. C. Johnson, the NRC Senior Resident Inspector, on May 15, 1986, and summarized the scope and findings of the inspection. }}