ML20085K117

Telecopy Ro:On 731214,while Conducting Routine post-maint Surveillance,Diesel Generator Cooling Water Pump Breaker Tripped.Investigation Underway

ML20085K117
Person / Time
Site:	Dresden
Issue date:	12/14/1973
From:	Worden W COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20085K115	List: ML20085K113 ML20085K117 ML20085K119
References
NUDOCS 8310200081
Download: ML20085K117 (2)

Text

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REGIONAL DIRECTOR DIRECTORIATE-OF-REGULATOR.T OPERATIONS oe REGION 3 WUX hS U S ATONIC ENERGY CONNISSION 799 ROOSEVELT@D ROAD E8 GLEN ELLYN ILL 60137

[0 SUBJECT DPR-25 DRESDEN NUCLEAR POWER STATION UNIT 3.

86 OO THIS WILL CONFIRN A CONVERSATION WITH NR NAURA 0F YOUR OFFICE AT gQ 1030 HOURS THIS DATE CONCERNING A FAILURE OF THE UNIT 3 DIESEL

.x GE E RATOR COOLING WATER PUNP. ON DECEMBER 14,1973 AT 0005 No.LNts

$$m UNILE CONDUCTING ROUTINE POST-MAINTENANCE SINtVEILLANCE OF THE UNIT 3 DIESEL SE E RATOR-THE 480 VOLT BREAKER FEEDINS THE COOLING WATER

, PUNP TRIPPED CAUSIMB THE DIESEL GEERATOR TO TRIP DN HIGH 3 l

""YIhPERATURE. AL SYSTENS REGUIRED TO BE OPERABLE WNEN TE UNIT 3

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l DIESEL IS OUT OF ' SERVICE WERE INNEDIATELY TESTED AND VERIFIED TO BE OPERABLE. AN INVESTIGATION INTO THE CAUSE OF THE COOLING WATER PUNP

, FEED BREAMER TRIP IS UNDERWAY AT THIS TINE.

W P WORDEN, SUPERINTENDENT DRESDEN NUCLEAR POWER STATION j CONNONWEALTH EDIS0N COMPANY ROUTE I CORRIS ILLINDIS NNNN C E C ?.1 1- , l l

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% UNITED STATES i ?g' f.7j'.  ; ATOMIC ENERGY COMMISSION

, 7 ,, DIVISION OF COMPLI ANCE

1. '/f REGION lli t /gg e 799 ROOSEVELT ROAD 7gLgpgogg GLEN ELLYN ILLINOls 60137 (3 2) ass-zeso A. R0 Inspection Report No.

Transmittal Date  :

Distribution: Distribution:

RO Chief, FS&EB RO Chie f, FS&EB RO:HQ (5) RO:HQ (4)

DR Central Files L:D/D for Fuel & Materials l Regulatory Standards (3) DR Central Files

) Licensing (13) RO Files l RO Files B. RO Inquiry Report No.

Transmittal Date  :

Distribution: Distribution:

R0 Chief, FS&EB R0 Chief, FS&EB RO:HQ (5) RO:HQ DR Central Files DR Central Files Regulatory Standards (3) RO Files Licensing (13) l RO Files C. Incident Notification From: Co:::monwealth Edison. Co., Docket No. 50-249 (Licensee & Docket No. (or License No.)

Transmittal Date . January 9, 174 Distribution: Distribution:

R0_Ch te f.,_JS &E_B_ RO chief, FS&EB RO:HQ (4) RO:HQ (4)

Licensing (4)

L:b/D for Fuel & Materials DR Central Files DR C. 7 tral Files RO Files RO Fitts h

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