ML19340C171

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Interim Deficiency Rept Originally Reported on 801003 Re Longitudinal Cracks in Us Steel Carbon Steel Piping Purchased from Guyon Alloys.Util,Us Steel & Guyon Alloys Will Meet Onsite for Piping Evaluation.Final Rept by 810202
ML19340C171
Person / Time
Site: Phipps Bend  Tennessee Valley Authority icon.png
Issue date: 11/03/1980
From: Mills L
TENNESSEE VALLEY AUTHORITY
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
10CFR-050.55E, 10CFR-50.55E, NCR-PBNP-154, NUDOCS 8011140079
Download: ML19340C171 (2)


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l TENNESSEE VALLEY AUTHORITY l CHATTANOOGA. TENNESSEE 374ol .

400 Chestnut Street Tower II

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. t 80' O O - C b # November 3, 1980 '

Mr. James P. O'Reilly, Director Office of Inspection and Enforce =ert U.S. !!uclear Regulatory Cornission Region II - Suite 3100 101 Marietta Street j Atlanta, Georgia 3030?

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Dear Mr. O'R= illy:

i PHIPPS BE!!D NUCLEAR PLA!!T - REPORTABLE DEFICIENCY - U.S. STEEL PIPE WITH LONOITUDI?IAL CRACKS (!!CR P3?'P 15U) t l Initial notification of the subject deficiency was made to '!RC-0IE, I Region II, Inspector R. W. Wright on Octcber 3, 1980. In con liarce

with paragraph 50.55(e) of 10 CFP Part 50, we are enclosin the

! first interim report on the subject deficiency. We consider 10 CFR l Part 21 applicabla to this ncnconfermance. TVA anticicates i transmitting tha final report on or bercre Fabruary 2, 10S1. If v0u l have any questions, please call Jim Demer at FT3 357-2012 Very truly yours, TEN'!ES3EE VALLEY AUTHORI'Y C./* h s N d L. Pf. Mills, Manacer

?!uclear Rasulation and Safety Enclosure cc: Mr. Victor Stello, Diracter (Enclosural Office of Inspection and Enforcenant U.S. Nuclear Reculato y Commission Washina: ton, DC 20455 j

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'O % hU d b a 90ill*l0 0 Y? .

An Eaual Opportunity Employer M@@

d ENCLOSURE PHIPPS BEND NUCLEAR PLANT UNITS 1 AND 2 U.S. STEEL PIPE WITH LONGITUDINAL CRACKS i 10 CFR PART 50.55(e) REPORT NO. 1 (INTERIM)

On October 3, Ic30, TVA informed NRC-0IE, Region II, Inspector j R. U. Wright of a condition regarding longitudinal cracks in U.S.

Steel carbon steel piping at Phipps Bend Nuclear Plant. T)is is the
first interin report on the subject reportable deficiency. The final report will be filed on or before February 2,1981.

1 l Descriotion of Deficienev Three heats of seamless eight-inch schedule 80 SA1068 (heat Nos.

L62443, L63651, and LS3647) purchased from Guyon Alloys under contract to TVA have displayed longitudinal cracks. These cracks are not necessarily visible to the naked eye and have been detected by NDE procedures. The largest crack was 10 feet in length; one l crack penetrated 80 percent of the pipe wall thickness. This picing could have been used in any code system calling for this material. In no case has this piping been installed in any system or conponent that is to function under pressure.

! Interin Freeress Representatives of TVA, U.S. Steel, and Guyon Allys are to meet -

onsite for evaluation and testing of the subject piping. The extent of this deficiency and the corrective action to be taken should be determined at this meeting.

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