ML20084L665

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Telecopy Ro:On 740802,during Operability Test,Hpci Valve MO-2301-35 Alternate HPCI Suction from Torus Failed.Caused by Maladjustment of Contractor.Drive Inserted & Disarmed Pending Site Review
ML20084L665
Person / Time
Site: Dresden Constellation icon.png
Issue date: 08/02/1974
From: Stephenson B
COMMONWEALTH EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084L663 List:
References
NUDOCS 8305230604
Download: ML20084L665 (3)


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VEC35 7(2255)(l-051018Cgg,y/02/]4,2253; 3y-.;;; cp,ptns )

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PMS JAMES 0 KEPPLER "DkGb@ONAL'.gIfjCTOR k

03337 TDVE MORRIS IL208 27P CDT ygfQ 2 (Q O DIRECTORATE OF REGULATORY ~0PERATIONS REGION 3 W'

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US ATOMIC ENERGY COMMISSION t

.799 ROOSEVELT RD GLEN ELLYN IL 60137 g

3 g hh SUBJECT DPR-19 DREDSEN NUCLEAR POWER STATION UNIT 2.

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THIS WILL CONFIRM A CONVERSATION WITH F MAURA 0F YOUR OFFICE hy AT 1545 HOURS THIS DATE CONCERNING FAILURE OF HPCI MO-2301-35 ALTERNATE HPCI SUCTION FROM TORUS.

FAILURE WAS DUE To

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MISADJUSTMENT OF CONTACTOR AND WAS' DISCOVERED WHILE CONDUCTING b

! @@m OPERATIBILITY TEST AFTER MAINTENANCE OUTAGE OF SYSTEMS.

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j OVER TRAVEL OF CONTROL ROD DRIVE X-II, (38-43) WHILE SETTING ROD PATTERN ATTEMPTED TO REC 00PLE 5 TIMES BEFORE SUCCEEDING, BUT INSERTED AND DISARMED DRIVE PENDING AN ON SITE REVIEW.

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B B STEPHENSON SUPERINTENDENT DRESDEN NUCLEAR POWER STATION COMMONWEALTH EDISON CO l

RR#1 MORRIS ILLINOIS 60450 l

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UNITED STATES

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DIRECTOR ATE OF REGULATORY OPERATIONS s/

REGION 111 d ra s d "f 799 F.OOSEVELT ROAD mg GLEN ELLYN. ILLINOIS 6o137 (312) s%-2sso A.

RO Inspection Report No.

Transmittal Date Distribution:

Distribution:

R0 Chief, FS&EB RO Chief, FS&EB RO:HQ (5)

R0:llQ (4)

DR Central Files L:D/D for Fuels & lbterials Regulatory Standards (3)

DR Central Files Licensing (13)

RO Files RO Files B.

R0 Inquiry Report No.

Transmittal Date Distribution:

Distribution:

R0 Chief, FS&EB R0 Chief, FS&EB RO: LIQ (5)

RO:llQ DR Central Files DR Central Files Regulatory Standards (3)

RO Files Licensing (13)

RO Files C.

Incident Notification From: Commonwealth Edison Co.

Docket No. 50-237 (Licensee & Docket No. (or License No.)

August 14, 1974 Transmittal Date Distribution:

Distribution:

R_Ojc N.~"^&EB R0 Chief, FS&EB RO:llQ (4)

RO: LIQ (4)

Licensing (4)

L:D/D for Fuels & Materials DR Central Files DR Central Files RO Files RO Files ft Y

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