ML20049J487

Final Deficiency Rept Re Failure to Hydrotest Mechanical Penetration Assemblies,Originally Reported on 810814.STRIDE Spec 400-09 Revised.Also Reported Per Part 21

ML20049J487
Person / Time
Site:	05000000, Hartsville, Phipps Bend
Issue date:	02/25/1982
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-PT21-82 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8203180257
Download: ML20049J487 (3)

Text

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• TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESbEN ol 400 Chestnut Street Tower'III hQt February $S,I'1N2l Pl 6' HTRD-50-518/81-22, -519/81-18

-520/81-20, -521/81-18

• PBRD-50-553/81-24, -554/81-18 O 3

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U.S. Nuclear Regulatory Commission h' n" c C' q

Region II -

ATTN: JamesP.O'Reilly,RegionalAdministrator[ t'@ kg G327 d< { !:~

101 Marietta Street, Suite 3100 - -

yy:*A,"M f-Atlanta, Georgia 30303 X W. lZ

Dear Mr. O'Reilly:

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HARTSVILLE AND PHIPPS BEND NUCLEAR PLANTS - REPORTABLE DEFICIENCY -

FAILURE TO HYDROTEST MECHANICAL PENETRATION ASSEMBLIES -HTRD-50-518/81-22,

-519/81-18, -520/81-20, -521/81 PBRD-50-553/81-24, -554/81-18 Initial notification of the subject deficiency was made to NRC-0IE, Region II, Inspector P. A. Taylor on August 14, 1981 as NCR HTA QEB 8101, HTB QEB 8101, and PBN QEB 8102. Our first interim report was submitted on September 15, 1981. In compliance with paragraph 50.55(e) of 10 CFR Part 50, we are enclosing the final report on the subject deficiency. We consider 10 CFR Part 21 applicable to this nonconformance. As discussed with NRC-0IE Inspector Ross Butcher on February 5, 1982, TVA was granted an 18-day extension on the submittal of this report. If you have any questions regarding this subject, please call Jim Domer at FTS 858-2725.

Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, nager Nuclear Regulation and Safety Enclosure cc: Mr. R. C. DeYoung, Director (Enclosure)

Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 gygci AL COPY 8203180257 820225 DR ADOCK 05000 g An Equal Opportun ty Employer

a e ENCLOSURE jP HARTSVILLE NUCLEAR PLANTS A AND B AND PHIPPS BEND NUCLEAR PLANT FAILURE TO HYDROTEST MECHANICAL PENETRATION ASSEMBLIES HTRD-50-518/81-22, -519/81-18, -520/81-20, -521/81-18 PBRD-50-553/81-24, -554/81-18 10CFR50.55(e) REPORT NO. 2 (FINAL)

Lescription of Deficiency --

This deficiency concerns the failure of General Electric, San Jose, California, to hydrotest the GE-NSSS-supplied flued head process line of the main steam penetrations before attaching the guard pipe supplied by Ametek. Paragraph NB6121 of ASME Section III requires that all mechanical welded joints of ASME Class I lines shall be left uninsulated and exposed for visual examination during hydrotesting. The guard pipe attached to the flued head process line prevents proper inspection of the welds during hydrotesting of the system. Adequate planning and coordination of responsibilities for the hydrotest of the flued head to main steam line weld was not accomplished before preparation of STRIDE senetration specification 400-09 Safety Implications Had this condition remained uncorrected, failure to hydrotest the flued head process line properly could result in inadequate welds not being identified. This could result in failures of these welds. The pressure boundary of the main steam line would not be maintained, thereby adversely affecting plant safety.

Corrective Action There are 24 of the subject penetrations affected by this deficiency.

Seven of these penetrations have been shipped to the Hartsville site without the necessary hydrotesting accomplished. Quality Control Inspection Reports (QCIRs) have been written against these seven penetrations indicating that the associated process piping has not been hydrotested.

The seven penetrations so identified are:

Penetration Number Serial No. QCIR No.

9SCD 969 29345 l

9sCD 1182 29345 l 10SCD 971 29305 l 10SCD 973 29305 l 11SCD 970 29305 l 12SCD 972 29305 l 12SCD 1181 29345 l

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V 1 These penetrations will be assigned by TVA to deferred units and the QCIR will be_ resolved before the penetration can be placed in operation. In addition, a memorandum from EN DES will be transmitted to the Hartsville j site on or before April 1, 1982, directing site personnel to effect the '

transfer of assignment.

In order to prevent recurrence of this deficiency, STRIDE specification 400-09, paragraph 6.2, has been revised to require the STRIDE mechanical penetration seller to perform an overpressure hydrostatic test on the main steam flued head process pipe before assembly with the guard pipe.

This revision ensures that the remaining 17 penetrations.have been or will be hydrostatically tested before shipment..

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