ML18017A538

RO on 790604:welds in 15 Containment Liner Sleeves Were Not Stress Relieved.Caused by Misunderstanding of Intent of Code Requirement.Units Returned to Vendor for Stress Relieving

ML18017A538
Person / Time
Site:	Harris
Issue date:	06/07/1979
From:	George H CHEMETRON CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 7906130290
Download: ML18017A538 (6)

Text

REGULATORY HFORMATION DISTRIBUTION S EM (RIOS)

ACCESSION NBR:7906i30290 DOC,DATE; 79/06/07 NOTARIZEDs NO DOCKET FACIL',50 400'Shearon'Harr is Nuclear Power Plantr Unit ir Carolina 05000400 50 401 'Shearon Harris Nuclear: Power Plantr Onit 2"r Carolina 05000401 50 402 Shear on Harris Nuclear Power Plentr Unit 3r Carolina 05000402 AUTH, NAME 'UTHOR AFFILIATION GEORGEiH ~ H, Chemetr on Corp,r Tube Turns Div; REC IP ~ NAME RECIPIENT AFFILIATION Reg/on 2r Atlantar Office of the Director'"

'SUBJECT! Submits rept on 790604 reportable- event:welds in 15 containment liner"sleeves" were not stress t'elieved,Caused by misunderstanding of intent of code requirement,Uni;ts-retur ned to vendor'or. stress relieving.

DISTRIBUTION CODE;- 8019S COPIES RECEIVED:LTR, I 'NCL'f, SIZEs: ""

TITLE; CONSTRUCTION DEFICIEACY REPORT'. (10CFR50 ~ 55E) ~

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RECIPIENT COPIES REC IPIENT COPIES ID CODE/NAMEI CTTR ENCL ID'ODE/NAME>> LTTR 14 PM ~>>~ 1 1 15 BC L'~r W3 1 ENCL'CTION:

1 20 LA L r+3 1 1 21 AD VASs~L~ 1 1 INTERNAL: REG. FILE>> 1 1 02 NRC POR 1 1 0 2 2 07 EDO 8 STAFF 1 1 08 MPA 1 1 09 DEPY DIR OPM 1 1 10 QAB 1 1 11 STANORDS OEV 1 1 12 'JORDAN'/IE 1 1 13FIELD COOR/IE>> .i.

16 AD FOR ENGR 1 1 17 AO PLANT'YS- ~ 1 1 17 AD REAC SFTY 1 1 19 AO 'SYS/PROJ 1 22 DIR DPM 1 1 23 OELD 1 AD/SITEi TECH 1 =1 DIRECTOR OSE>> 1 1 GEOSCIENCES BR 1 STRUCT ANLYS BR. 1 1 EXTERNAL: 03 LPDR" '1 1 04 NSIC 24 ACRS 16 16 A@9

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TOTAL NUMBER OF COPIES'EQUIRED LTTR 43 ENCL 43

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Tube Turns Division CHEMURON CORPORATION Box 32160, Louisville, Kentucky 40232 Telephone 502 774-6011 June 7, 1979 Nuclear Regulatory Commission Region II 101 Marietta Avenue, Suite 3100 Atlanta, Georgia 30303 Gentlemen:

Following is the written report of an event reported by phone to NRC Region II office (Mr. Jack Bryant) on June 5, 1979. The condition has also been reported by Carolina Power and Light to Region II. This report is made at the suggestion of Mr. Bryant to provide a complete report of the information required by 10CFR Part 21.

(I) Reported by:

Tube Turns Division of Chemetron Corporation H, H. George, Vice President Engineering 2900 West Broadway P, O. Box 32160 Louisville, Kentucky 40232 (II) Facility supplied:

Carolina Power and Light Shearon Harris Nuclear Generating Station (III) Firm supplying the product:

Tube Turns Division of Chemetron Corporation (IV) Nature of defect:

There was a misunderstanding of the intent of code require-ments as presented in NE4621.1 and Table NE4622.1-1 Sum-mer 1972 Addenda with regard to the sleeve to containment-liner insert weld. The welds in fifteen sleeves were not stress relieved.

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Tube Turns Diion CHEME1RON CORPORATION (V) Date problem was confirmed to exist:

A determination was made on June 4, 1979 that the stress relief operation is a requirement and had not been per-formed on these sleeves.

(VI) Locations where the problem may exist:

Our initial review indicates no other nuclear power stations have been furnished similar subassemblies in an unheat-treated condition. A more thorough review is now being made and NRC will be advised within two weeks of the results of this review.

(VII) Corrective action:

Subassemblies that have not been installed are being returned at once to Tube Turns for stress relieving. The four units reported as being installed are being removed by Carolina Power and will be returned to Tube Turns for stress relieving. It is estimated that the first pl.eces will be returned to the fl.eld site by about June 18 and the balance about two weeks after receipt in Louisville.

(VIII) Advice to purchaser:

Ebasco, the Architect Engineer, and the owner, Carolina Power and Light, are aware of all of the information known regarding the conditions.

Very truly yours, H. H. George Vice President - Engineering

~Co Ies:

/U. S, Nuclear Regulatory Commission (3 copies)

Director, Office of Inspections and Enforcement Washington, D. C. 20555 Carolina Power and Light Company Attn: Mr. Leonard Loflin P. 0. Box 1551 Raleigh, North Carolina 27602 Ebasco Services, Inc.

Attn: Mr. Ralph Georgio 21 West Street New York New. York 100QG, Tube u(ns DIvIsion, Member At. MEM5 GROUI'llegheny Ludlum Industries, Inc.

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