ML20138C325

Interim Deficiency Rept Re Loose Set Screws on Anchor Darling Swing Check Valves & Disc Nut Pin Problems Causing Inoperability.Initially Reported on 850912.No Further Corrective Action Will Be Taken Unless Facility Reactivated

ML20138C325
Person / Time
Site:	Midland
Issue date:	10/08/1985
From:	Jackie Cook CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
32402, NUDOCS 8510220411
Download: ML20138C325 (4)

Text

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Consumers- .

power James W Ceek Ohhbf.'  : Vice President - Projects, Engineering and Construction Generei offices: 1945 West Pernell Road, Jackson, MI 49201 * (517) 788 0453

~ October 8,'.1985 85-06 #1 Mr J G Keppler, Regional Administrator US' Nuclear Regulatory Commission Region III 799 Roosevelt Road

-Glen Ellyn, IL~ 60137 MIDLAND ENERGY CENTER PROJECT DOCKET NOS-50-329 AND 50-330 ANCHOR DARLING SWING CHECK VALVES

, FILE: 0.4.9.111 SERIAL: 32402 On September 12, 1985 Consumers Power Company (CPCo) notified your staff of reportable conditions on Anchor Darling Swing Check . Valves. In accordance with the requirements'of 10 CFR 50.55(e) CPCo is making this interim report.

Description of Concern CPCo received a copy of Bechtel Deficiency.Eva'luation Report.(DER)'84-102 .;

which documents a reportable condition encountered at the Palo Verde Nuclear  ;

Generating Station. The report identifies problems with Anchor Derling Swing Check. Valves. .Specifically, set screws were not set tight enough against the hinge pin, and in some cases were missing a required tack weld. . Additionally, the disc nut pin was not welded.to'the disc nut as. required.' -Either of these conditions could make the valve' inoperable. There are some Anchor Darling Swing Check Valv'es installed at the Midland Energy Center which have either the same, or similar design as those associated with~the problems identified

-for Palo Verde.

t Safety Impact' The safety impact of this' condition is indeterminate.

Root-Cause '

No root cause has been determined for this-condition, sho22o411851o08,'

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-Corrective Action Corrective actions will not be pursued and no further reports on this subject will be made'unless the Midland Energy Center is reactivated. This item will be entered in our Correspondence and Commitment Management system for long-term tracking.-

JWC/MCB/emd CC: NRC, Director of Office of Inspection and Enforcement Washington, DC DSHood, NRC Office of NRR Bethesda, MD i Document Control Desk, NRC-i Washington, DC INPO Records Cent'er t

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85-06 #1 t

OM/0L-SERVICE LIST f Mrl Frank J Kelley Atomic Safety & Licensing i Appeal Board Attorney General of the State of Michigan U S Nuclear Regulatory Commission l Ms Carole Steinberg Washington, DC 20555  :

Assistant Attorney General l Environmental Protection Division Mr C R Stephens (3) i 720 Law Building Chief, Docketing & Services i

-Lansing, MI 48913 U S Nuclear Regulatory Commission E Office of the Secretary ,

4 Washington, DC 20555 =!

Mr Myron M Cherry, Esq "

Suite 3700 Ms Mary Sinclair  ;

i Three First National Plaza '5711 Summerset Street L Chicago, IL'60602 Midland, MI 48640  !

Mr Wendell H Marshall Mr William D Paton, Esq  !

RFD 10 , Counsel for-the NRC Staff Midland, MI 48640 U S Nuclear Regulatory Commission ~ 7 Washington, DC 20555 I i Mr Charles Bechhoefer, Esq }

3 Atomic Safety &. Licensing ' Atomic Safety & Licensing i Board Panel ' Board Panel U S Nuclear Regulatory Commission U S Nuclear Regulatory Commission i East-West Towers, Room E-413 Washington, DC 20555 Bethesda, MD'20014  ;

Ms Barbara Stamaris l-Dr Frederick P Cowan 5795 North River Road '

6152 N Verde Trail Rt 3 ,

Apt B-125 Freeland, MI~48623 l Boca Raton, FL~33433 '

.; . Dr Jerry. Harbour l Mr' Fred C Williams Atomic Safety & Licensing [

Isham, Lincoln & Beale Board Panel .

1120 Connecticut. Ave, NW, Suite 840 U S Nuclear Regulatory Commission' Washington, DC 20036 f

East-West Towers,-Room E-454  !

Bethesda, MD 20014 7

Mr James E Brunner, Esq  !

.I Consumers Power Company Mr M I Miller, Esq. I

{ 212 West Michigan Avenue Isham, Lincoln & Beale [

Jackson, MI 49201 Three First National Plaza  ;

52nd Floor i Chicago, IL 60602 [

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. '85-06 #1' Mr Steve 1Gadler, Esq Mr John Demeester, Esq

.2120 Carter Avenue f; Dow Chemical Building

St Paul,.MN. 55108 Michigan Division ~  !

Midland MI 48640 -[

. Mr P Robert Brown. i Clark, Klein.& Beaumont Ms Lynne Bernabei i 1600 First Federal Bldg Covernment Accountability Project f Woodward. Ave: - 1901 Q Street, NW  :

Detroit, MI 48226 . Washington, DC 20009  :

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