ML20067C764

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Special Rept 91-01:on 910107,emergency Diesel Generator D Failed to Start When Manual Channel D ECCS Actuation Test Signal Was Initiated.Cause Unknown.Test Successfully Completed
ML20067C764
Person / Time
Site: Hope Creek PSEG icon.png
Issue date: 02/04/1991
From: Hagan J
Public Service Enterprise Group
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
91-01, 91-1, NUDOCS 9102120191
Download: ML20067C764 (1)


Text

{{#Wiki_filter:_ _ - ~_ 'i '7 - Public Service Electric and Gas Cornpany P.0; Box 236 Hancocks Sndge, New Jersey 08038 ? Hope Creek Operations ' t 'N ( February 4, 1991 -{ -U.S.- Nuclear' Regulatory' Commission Document Control Desk Washington, DCi 20555 a

Dear 1 Sir:

HOPE CREEK GENERATINGLSTATION k DOCKET NO. 50-354 L UNIT NO. 1 SPECIAL REPORT-91, e This>Specih11 Report iscsubmitted pursuant to the requirements-l of Hope-Creek Technical Specification 4.8.1.1.3 and Regulatory r' Guide-1.'108, Revision'1 due to the test failure of,the "D" Emergency Diesel? Generator (EDG). These documents 1 require a -written report?tolthe NRC within'30 days of a valid or -non-valid start; failure.. -On 1/7/91Jat 2335,Wduring performance of an 18 month integrated 1 test,- the."D"'EDGifailed to start when a manual. Channel 1"D" Emergency CorelCoo11ng1 System (ECCS) actuation test signal was initiated. Extens'ive troubleshooting could-not determine a reason for-this failure:to start,tand a second attempt'was made to complete this; evolution. The "D" EDG started as required,' and-the scction,otethe. procedure relative.to testis 1g the EDG-via.ECCS-circuitry;was successfully-completed. Following-Lcompletionlof the test,Ethe "D" EDG was-started and loaded

antadditional~sixitimes:during the performance'of the 18 month-

-surveillance, with>noffurther problems being-observed. _l Testingsintervals for the "D"-EDG remain at once per 31 days, asethis failureiwas"the first failure in the last.100 valid' tests of the "D"EEDG. . Testing frequency is increased to once it portweek iflthe number of? start. failures? exceeds 2'out of the 0 last 20 or 5 outiotDthe11ast 100 attempts. Should.you have.any furthercquestions, please contact Mr. RickL f Cowles. of my staf f, ;a t,(609) 339-3431. Since ely, 3

3 w

) . J./ H agan f Gen Me Manager - Hope Creek Operations RC/dwf /hh l C Distribution p The Energy People jig 9102120191 910204 L '1 'I I, P. i-_ PDR ADOCK 03000354 3 S PDR i ~~. _., _ __}}