05000324/LER-1981-066-03, Generator Diesel 2 Tripped & Locked Out Due to Jacket Water Temp Exceeding Trip Setpoint.Caused by Failure to Adequately Monitor Diesel Jacket Water Temp After Adjusting Valve DJW-V196

Generator Diesel 2 Tripped & Locked Out Due to Jacket Water Temp Exceeding Trip Setpoint.Caused by Failure to Adequately Monitor Diesel Jacket Water Temp After Adjusting Valve DJW-V196

ML20010F775
Person / Time
Site:	Brunswick
Issue date:	09/03/1981
From:	Pastva M CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010F771	List: 05000324/LER-1981-066, Forwards Updated LER 81-066/03L-1 05000324/LER-1981-066-03, Generator Diesel 2 Tripped & Locked Out Due to Jacket Water Temp Exceeding Trip Setpoint.Caused by Failure to Adequately Monitor Diesel Jacket Water Temp After Adjusting Valve DJW-V196
References
LER-81-066-03L, LER-81-66-3L, NUDOCS 8109110314
Download: ML20010F775 (1)

LER-1981-066, Generator Diesel 2 Tripped & Locked Out Due to Jacket Water Temp Exceeding Trip Setpoint.Caused by Failure to Adequately Monitor Diesel Jacket Water Temp After Adjusting Valve DJW-V196

Event date:
Report date:
3241981066R03 - NRC Website

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gav Upd t Report LICENSEE EVENT REPORT Previous Report Date A-ll-81 CONTROL BLOCK

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l (PLE ASE PRINT OR TYPE ALL RTOUIRED INFORMATIONI i

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lg 8 9 LICENSEE CODE 14 15 LICE NSE NUN'8E R 25 26 LICENSE TYPE 30 51 LA T 58 CON'T [olil s$RC l L lhl 0 j 5 l 0 l-l0 l 3 l 2 l4 g 0 l7 l1 l4 l 8 l1 ]l0 l9 l0 l3 l8 l1 l@

8 60 61 DOCKET NUYSER 68 69 EVENT D ATE 74 75 RE PORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONScQUENCES h lol2l lDuring plant operation while performing the No. 2 Diesel Generator Monthly Load T w, l

o;g lPT 12.2b, the diesel tripped and locked out due to jacket water temperature exceeding j j o ;4 ; lthe trip setpoint of 200 F.

The diesel was still available to perform its design l

o;3; ; function.

This event did nOt affect the health and safety of the public.

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Technical Specifications 3.8.1.1, 6.9.1.9b l

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VALVE CODE CODE SU8 CODE COYPONENT LODE SUBCODE SUBCODE l0(9l l E j Elg g l B lg lV lA lL lV lE lX lg g lQlg 7

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10 11 12 13 18 19 20 SEQUENTI AL OCCURRENCE REPORT REVISION

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40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS l3 [gllA failure to adequately monitor the diesel jacket water temperature after adjusting l

l the jacket water temperature control valve manual bypass valve, DJWV196, in order to l li ;i; caused this event.

Following this event, the i

g,;7; jraise the jacket water temperature, gi;3; j diesel was restarteu and the PT was satisf actorily completed.

All auxiliary operators l will be instructed by Shift Foreman to closely monitor diesel operating parameters j

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i 8 9 during, elesel operallon.

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7 8 9 11 12 80 LOSS OF OR DAMAGF TO FACILITY TYPE

DESCRIPTION

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