ML19329E303

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Responds to IE Bulletin 78-05 Re GE Model CR105X Circuit Breaker Malfunctioning.Ge Model CR105X Auxiliary Contact Mechanisms Not Used in Facility Design
ML19329E303
Person / Time
Site: Midland
Issue date: 06/12/1978
From: Howell S
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
IEB-78-05, IEB-78-5, NUDOCS 8006120607
Download: ML19329E303 (2)


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s Consumers 11 Power M*'***!1AIO!!Y.0$CKEI ELE 3= 1.-

Stephen H. Howell 0h Vice President Generei offices: 1945 West Parnell Road, Jackson, Michigan 49201

  • Area Code 517 788-0453 June 12, 1976 Howe 94-78 Mr J G Keppler, Regional Director Nuclear Regulatory Commission Region III IHIS-DOCUMENT CONTAIN8 799 Roosevelt Road Glen Ellyn, IL 60137 P00R QUAUTY PAGK$

MIDLAND PROJECT DOCKET NO 50-329, 50-330 IE BULL 7t.IN 78-05 FILE: 0505 2 SERIAL: 5427 Your IE Bulletin 78-05 on " Malfunctioning of Circuit Breaker Auxiliary Contact Mechanism - GE Model CR105X", requested an investigation be made to determine if GE Model CR105X auxiliary contact mechanisms are used in safety-related equipment at the Midland Plant Units 1 and 2.

Through our investigations, we have determined that there are no GE Model CR105X auxiliary contact mechanis=s used in the'liidland Plar.t design.

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SHH/jbg CC: Director, HRC Office of Inspection & Enforcement

/birector of Nuclear Reactor Regulation 781720157 8006120[O Q

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gj REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

DISTRIBUTION FOR INCOMING MATERIAL SSO REC: KEPPLER J O ORG: HOWELL C H DOCDATE: 06/12/78 NRC CONSUMERS PWR DATE RCVD: 06/20/T DOCTYPE: LETTER NOTARIZED: NO

SUBJECT:

COPIES RECEIVED LTR 1 ENCL 0 RESPONSE TO IE BULLETIN 78-05 " MALFUNCTIONING OF CIRCUIT BREAKER AUXILIARY CONTACT MECHANISM - GE MODEL CR105X", ADVISING THERE ARE NO GE MODFL CR105X AUXILIARY CONTACT MECHANISMS USED IN SUBJECT FACILITY"3 DESIGN.

PLANT NAME: MIDLAND - UNIT 1 REVIEWER INITIAL:

XJM MIDLAND - UNIT 2 DISTRIBUTER INITI AL:p

                                  • DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS ******************

CONSTRUCTION DEFICIENCY REPORT (10CFR50.55E)

(DISTRIBUTION CODE B019)

FOR ACTION:

ASST DIR VASSALLO**LTR ONLY(1)

BR CHIFF LWR #4 PC**LTR ONLY(1:

PROJ MGR HOOD **LTR ONLY(1)

LIC ASST LWR #4 LA**LTR ONLY(1:

INTERNAL:

Q EG FILE **LTR ONLY(1)

NRC PDR**LTR ONLY(1) i _ ~ " L T" ^ "' v ' ' '

OELD**LTR ONLY(1)

OOSSICK & STAFF **LTR ONLY(1)

MIPCu*LTR ONLY(1)

DIRECTOR DPM**LTR ONLY(1)

DEPUTY DIR DPM**LTR ONLY(1)

QAB**LTR ONLY(1)

DIRECTOR DSS **LTR ONLY(1)

AD FOR ENG**LTR ONLY(1)

AD FOR REAC SFTY**LTR ONLY(1)

AD FOR PLANT SYSTEMS **LTR ONLY(

SD**LTR ONLY(1)

AD FOR SYS b PROJ**LTR ONLY(1)

K SEYFRIT/IE**LTR ONLY(1)

FEFD DREHER/IE**LTR ONLY(1)

EXTERNAL:

LPDR'S MIDLAND, MIi+*LTR ONLY(1)

TIC **LTR ONLY(1)

NSIC**LTR ONLY(1)

ACRS CAT A**LTR ONLY(16) hv DISTRIDUTION:

LTR 41 ENCL 0 SIZE: 1P CONTROL NBR:

791720157 oco*****************************M**

THE END

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