ML20077A077

Responds to NRC 830610 Ltr Re Violation Noted in IE Insp Rept 50-400/83-18.Corrective Actions:Deficiency & Disposition Rept 1553 Generated.Qc Pipe Welding Inspectors Trained in Identifying Arc Strikes

ML20077A077
Person / Time
Site:	Harris
Issue date:	07/07/1983
From:	Parsons R CAROLINA POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20077A062	List: ML20077A077 ML20077A085
References
CON-NRC-96 NUDOCS 8307220143
Download: ML20077A077 (3)

Text

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U S N R C R E H O f1 :I ATL ANTA. LEORGIA Carolina Power & Light Compar0 E L R A 9

• 3 9 P. O. Box 101, New Hill, N. C. 27562 July 7, 1983 Mr. James P. O'Reilly NRC-96 United States Nuclear Regulatory Commission Region II 101 Marietta Street, Northwest (Suite 2900)

Atlanta, Georgia 30303

Dear Mr. O'Reilly:

In reference to your letter of June 10, 1983, referring to RII: GFM/RP 50-400/

83-18-02,' the attached is Carolina Power and Light Company's reply t.o the violation identified in Appendix A.

It is considered that the corrective acticn taken is satisfa:: tory for resolution of-the item.

Thank you for your consideration in this matte.r.

Yours very truly, Y

R. M. Parsons Project General Manager Shearon Harris Nuclear Power Plant RMP/sh Attachment cc: Messrs. G. Maxwell /R. Prevatte (NRC-SHNPP)

Mr. P. Kadambi (NRC) 8307220143 830715 PDR ADDCK 05000400 G pm

r Attachment to CP&L Letter of Response to NRC Report RII: GFM/RP 50-400/83-18-02 Reported Violation:

10 CFR 50, Aprendix B, Criterion IX as implemented by PSAR Section 1.8.5.9, CP&L Corporate Q.A. Program, Section 8.4.1.d, requires that measures be established to assure that special processes, including welding, are controlled and accomplished by qualified personnel using qualified procedures in accordance with applicable codes, standards, specifications, criteria and other special requirements.

Contrary to the above, on May 2, 1983, an inspection of the installation of grout rings on sections of service water piping in the fabrication shop revealed arc strikes in the heat affected zone and the base metal. This work had been inspected and accepted by responsible welding inspection personnel.

This is a Severity Level V Violation (Supplement II.E).

Denial or Admiesion and I:eason for the Violation:

Tha viclarion is corre.ct as stated, in reference to the NRC reported iaspection violation that the referenced grout ring welde hsd been accepted by Q.C. with arc strikes remaining present, a further investigation has revealed that a Welding Engineering Supervisor had noted the arr. strikes in the baae metal and weld H.A.Z. prior to Q.C. being contacted for performanca cf the final visual inspection. The arc strikes were marked (black marker) by the Wciding Engineering Supervisor prior to their reuoval (carbide burr, grinding). After arc etrike removal by craft personnel, the Q.C. incpector was requested to perform the final visual inspec-tion. The location markings (black marker) remained on the pipe, indicating areas of arc strike removal, when the Q.C. inspector arrived for performance of the final visual inspection. The inspector accepted the welds upon completion of inspection (May 2, 1983). No further work was performed on these welds until it was later requested by the Q.A./Q.C. specialist during reinspection.

As a result of the NRC reported inspection violation, a Q.A./Q.C. specialist reinspected the welds on May 2, 1983 and noted one previously ground area which, under close observation, revealed the " minute" evidence of an apparent arc strfke to which removal by carbide deburring had been attempted. This area was later reworked (lightly ground), at the request of the Q.A./Q.C. specialist, to remove any remaining traces of the apparent arc strike. All other areas were determined to be acceptable. There was no evidence of the inspector intentionally permitting arc strikes on weld joints and the location in question was borderline as to being acceptable prior to any additional rework.

Corrective Steps Taken and Results Achieved:

Deficiency and Disposition Report No. 1553 was generated to disposition this isolated incident.

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• - ko Corrective' Steps'Taken to Avoid Further Noncompliance:

Q. A./Q.C. supervision has advised all Q.C. personnel to take extra precautions, when inspecting welds, to ensure that all arc strikes are completely removed priorito weld acceptance. All Q.C. Pipe Welding Inspectors have received additional training on identification of are strikes.

Date When Full Compliance Will Be Achieved:

Full compliance was achieved on June 29, 1983.

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