ML20005G439

Provides Addl Info on Part 21 Rept Re Defect in Six Instrument Cracks.Licensee Will Not Assume Liability for Defects After Expiration of Warranty

ML20005G439
Person / Time
Site:	Cooper
Issue date:	01/10/1990
From:	Hatch A HATCH, INC.
To:	Horn G NEBRASKA PUBLIC POWER DISTRICT
References
REF-PT21-90-012-000 PT21-90-012-000, PT21-90-12, NUDOCS 9001190159
Download: ML20005G439 (8)

Text

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1 IN00RPORATED

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' January 10, 1990

$ Mr. Guy R. Horn, Division Manager Nuclear Operation b Nebraska Public Power District Cooper Nuclear: Station P. 0.. Box 98 Brownville, NE 68321

Subject:

Report of a Defect in Accordance with 10CFR21 References, A. Nebraska Public Power District (NPPD)

L ' letter CNSS893230 dated Noveuber 2, 1989, subject as above.

B. ~ Telephone conversation between Walt lhaas, USNRC L and ted Taylor, Hatch, Inc. on November 2, 1989.

Dear Mr. Murley:

In response to Reference-A above, the following information, keyed to' Referenced 10CFR21 Report is furnished:

H 4* 1. -Self: explanatory

2. - Self explanatory-

3. ' Hatch Incorporated acknowledges;that it did build the six Instrument Racks in response to NPPD Purchase Order 258510.

4. Hatch-Incorporated acknowledges that there had to be l 1 loose and inadequately seated ferrules P 2 the possibility that ferrules might have been missing and, p 3) that ferrules might not have been mounted l sufficiently onto the tubing

4) no cross-threaded connections are acknowledged except for the one that was reported on Non-Conformance-Report (SO: 5875) September 30, 1986.

This item was furnished to Hatch, Inc. by NPPD.

This NCR was furnished to NPPD as part of the final documentation package and a copy is attached hereto as enclosure 1.

Please be advised that Nebraska Public Power Division, John Hubl, on September 25, 1986 waived the requirement to perform a' pneumatic test.

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9001190159 900110 PaEe'1 PDR ADOCK 05000298 S PDC

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' Page 2 Instead it was agreed by telephone that NPPD would perform f a leak test upon arrival at NPPD and correct any leaks at that  :

time. Based upon this phone call, Hatch, Inc. did not pneumati- i cally test the Instrument Racks nor wrench tighten the fittings i without. benefit of a subsequent leak test. The-fittings were  ;

shipped in a finger tight condition only. See Enclosure 2. l If these Instrument Racks had been installed in a "as

. received condition" contrary to enclosure 2, then Nebraska  ;

JPublic Power Division must assume all liability for'any safety hazard related to.the use-of the six (6) Instrument Racks furn-ished by Hatch, Inc. -In addition, since these Racks were-shipped on October 2, 1986 and no deficiencies were reported until November 1, 1989, a period in excess of three years and  ;

two years past the one year warranty period, it can only be assumed that NPPD did not honor the agreement to perform the 5

leak test upon receipt of the equipment, therefore no further  :

action is deemed appropriate, by Hatch Incorporated.  ;

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5. November 6, 1989 - When referenced letter was received at Hatch Incorporated.  !

6. Hatch Incorporated did not manufacture any Instrument Racks other than the six in question.

7. Self explanatory -

8. No communication of any type prior to receipt on i November 6, 1989 of reference above, has transpired between Nebraska Public Power District and Hatch .

-Incorporated.

Please note-that a Hatch certified test report covering the ,

six Instrument Racks has never been issued. This is because i John Hubl at Nebraska Public Power District assumed this respon- '

sibility. In addition, since so much time has elapsed since delivery of.the racks and-there is no way for Hatch Incorporated to.know what kind of conditions the racks were stored in, we can- '

not assume liability for any defects after expiration of the warranty.

Very truly yours, HAT 'I CORPORATED cc: Mr. Thomas E. Murley, Dicector

, Office of Nuclear Reactor J Regulation - U.S. Nuclear A. . t Regulatory Commission AEH/lmc Washington, DC 20555 Region IV Administrator Enclosures U.S. Nuclear Regulatory Commission Arlington, TX 78701

\ /NRC Document Control Desk Washington, DC 20555

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HATCH INCORPORATED Manufacturing power scrurot andinstrumentation Systems q

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, 1206 Myetw Avenue a ttraso, tenas 7900a.:009.(0:$) 542 1991 h -

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, REF: NPPD P.O. 258510, Hatch Sales Order 5875A

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