ML20093F831

Final Deficiency Rept Re Attachment of non-q/non-seismic Piping to Component Water Sys.Initially Reported on 831216. Investigation Completed.Training Session Held to Reinstruct Design Stress Group on Total Loads

ML20093F831
Person / Time
Site:	Midland
Issue date:	06/30/1984
From:	Jackie Cook CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
30338, 83-15-#3, OL, OM, NUDOCS 8407230194
Download: ML20093F831 (6)

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pb consumers power James W Cook h h Vice President - Projects, Engineering and Construction General officos: 1945 West Parnell Road, Jackson, MI 49201 e (517) 788-0453 June 30, 1984 83-15 f3 Mr J G Keppler, Regional Administrator US Nuclear Regulatory Commission Region III -

799 Roosevelt Road Glen Ellyn, 11 60137 MIDLAND ENERGY CENTER PROJECT DOCKET NOS 50-329 AND 50-330 NON-SEISMICALLY SUPPORTED COMPONENT COOLING WATER PIPING SYSTEM FILE: 0.4.9.87 SERIAL: 30338

References:

J W Cook letters to J G Keppler, same subject:

Serial 26665, dated January 16, 1984 Serial 30019, dated April 20, 1984 This letter is the final report of a 10CFR50.55(c) condition involving the attachment of non-Q/non-seismic piping to the component cooling water system.

The attachment to this letter describes the concern and summarizes the investigation and corrective action taking place.

JWC/AllB/cd

Attachment:

1) MCAR-79, Final Report, dated June 20, 1984.

CC: Document Control Desk, NRC Washington, DC g Midland NRC Resident Office

)h Midland Nuclear t'lant ,

DSilood, USNRC Office of NRR INPO Records Center 8407230194 B40630 fDR

' ADOCK 05000329 s PDR l OC0684-0037A-MP01 1

'2 83-15 #3 Serial 30338 OM/OL SERVICE LIST Mr Frank J Kelley Atomic Safety & Licensing Attorney General of the Appeal Board State of Michigan U S Nuclear Regulatory Commission Ms Carole Steinberg Washington, DC 20555 Assistant Attorney General Environmental Protection Division- Mr C R Stephens (3) 720 Law Building Chief, Docketing & Services Lansing, MI 48913 U S Nuclear Regulatory Commission Office of the Secretary Washington, DC 20555 Mr Myron M Cherry, Esq Suite 3700 Ms Mary Sinclair Three First National Plaza 5711 Summerset Street 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 Washington, DC 20555 Mr Charles Bechhoefer, Esq Atomic Safety & Licensing Atomic Safety & Licensing Board Panel Board Panel U S Nuclear Regulatory Commission U S Nuclear Regulatory Commission East-West Towers, Room E-413 Washington, DC 20555 Bethesda, MD 20014 Ms Barbara Stamaris Dr Frederick P Cowan 5795 North River Road 6152 N Verde Trail Rt 3 Apt B-125 Freeland, MI 48623 Boca Raton, FL 33433 Dr Jerry Harbour 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- East-West Towers, Room E-454 Bethesda, MD 20014 Mr James E Brunner, Esq Consumers Power Company Mr M I Miller, Esq

, 212 West Michigan Avenue Isham, Lincoln & Beale Jackson, MI 49201 Three First National Plaza 52nd Floor Chicago, IL 60602 OC0684-0037A-MP01

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83-15 #3 Serial 30338 Mr.D F Judd.

Babcock'& Wilcox.

PO Box 1260 Mr John Demeester, Esq Lynchburg, VA 24505 Dow Chemical Building Michigan Division Mr Steve Gadler, Esq Midland MI 48640 2120 Carter Avenue St Paul, MN 55108 Ms Lynne Bernabei-Government Ac. ountability Project Mr P Robert Brown 1901 Q Street, NW '

Clark, Klein & Beaumont Washington, DC 20009 1600 First Federal Bldg Woodward Ave Detroit, MI 48226 3/14/84 i

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. I OC0684-0037A-MP01 4 i

Attachment 1

.- Serial 30338

Bechtel Associates Professional Corporation .

I53997 I54085

SUBJECT:

NCAR 79 )

i 4 FINAL REPORT j DATE: June 20, 1984 PROJECT: Consumers Power Company Midland Plant Units 1 and 2 Bechtel Job 7220 I

Introduction l

This report provides the status of the course of corrective action i required by Management Corrective Action Report (NCAR) 79.

Description of concerns A condition exists where non-Q-listed /nonseismically supported component cooling water (ccW) piping is connected to Q-listed letdown coolers in the reactor building and Q-listed seal return coolers in the auxiliary building.

.j The following lines and associated equipment are involved in this concern:

Reference Line Equipment Document Unit Line Class _ Equipment _ Class _ _ _ (7220-)

1 6"-1HBD-448 through Non-Q 1E-57A and B Q H-616. Sh 5 451 (letdown coolers) 2 6"-2HBD-448 through Non-Q 2E-57A and B Q H-617 Sh 1 ,

451 (letdown coolers) 1 4"-1JBD-56 through Non-Q 1E-59A and B Q H-616. Sh 13 57 (seal return

coolers)

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2 4"-2JBD-161 through Non-Q 2E-59A and B Q H-617, Sh 13 162 (seal return i coolers) i i

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l t L Bechtel Associates Professional Corporation 1 1

l NCAR 79 154085 153997  :

l Final Report Page 2

, i Historical Backaround During a design review and site walkdown, it was discovered that the non-Q CCW piping connected to the reactor building letdown coolers was not seismically supported acd could impose unacceptable loading on the coolers. Subsequent investigation resulted in the identification of a

, similar condition associated with the return coolers. Affected hardware is listed in Description of concerns in this report.

Analvsle of Safety Impilcations 1

1. Using worst-case loading conditions, the associated cooler supports

could fail causing subsequent failure of the letdown line, a component of the reactor coolant boundary.

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2. Vendor reviews concluded that the affected hardware could fall under

! this worst-case loading.

l l 3. Based on the assumption in Item 2 above, this condition is l considered reportable under the Code of Federal Regulations, 10 CFR 50.55(e).

i' Root cause The root cause was failure to verify compliance with equipment vendor

nozzle load limitations at the interface between the non-Q-listed,

! noncritical systems during the coordinations process by the plant design stress group.

Corrective Action

1. Nonconformance Report C-02164 was issued March 29, 1984, to document the nonconforming hardware and track corrective action.

2. An investigation has been completed to determine whether a similar l condition exists where non-Q-listed systems have not been analyzed l for the effects on the safety-related equipment. The review found that one additional item was unacceptable: damper (0N0-6549) -

non-Q-ductwork connected to a Q-listed damper. All other commodities were found to be acceptable. Nonconformance Report H-00497-ZZ was issued June 15, 1984, to document the nonconforming hardware and to track corrective action.

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MCAR 79 -[5408g53997

, Final Report ,

Page 3

3. A training session was held to reinstruct plant design stress group personnel on the proper method of reviewing the total loads acting on vendor equipment when sent to project plant design for review.

No other training would be necessary because of the results of reviews of siellar concerns.

Reportability This concern was reported to the NRC by Consumers Power Company as a potentially reportable condition under the rules of 10 CFR 50.55(e) on December 16, 1983.

,df3$

F Submitted by: _

W OF# A E.B. Poser d Project Engineering Manager Approved by: /

($pe) B.f Klein Plant Design Chief Engineer e#x (^

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Approved by: p r '-

E.H. Smith Engineering Manager t

l Concurrence by- 7 l

M.A. Dietrich Project Quality Assurance Engineer BS/MLH/bjm*(PD) l l

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