05000220/LER-1980-018-03, /03L-0:on 800808,during Normal Operation, Emergency Diesel Generator 103 Fuel Oil Day Tank Low Level Alarm Was Received.Caused by Inadvertent Opening of Day Tank Drain Valve.Tank Refilled.Oil Valve Sys Locked

/03L-0:on 800808,during Normal Operation, Emergency Diesel Generator 103 Fuel Oil Day Tank Low Level Alarm Was Received.Caused by Inadvertent Opening of Day Tank Drain Valve.Tank Refilled.Oil Valve Sys Locked

ML18037A305
Person / Time
Site:	Nine Mile Point
Issue date:	09/05/1980
From:	Harrison P NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17053B910	List: 05000220/LER-1980-018, Forwards LER 80-018/03L-0 05000220/LER-1980-018-03, /03L-0:on 800808,during Normal Operation, Emergency Diesel Generator 103 Fuel Oil Day Tank Low Level Alarm Was Received.Caused by Inadvertent Opening of Day Tank Drain Valve.Tank Refilled.Oil Valve Sys Locked
References
LER-80-018-03L, LER-80-18-3L, NUDOCS 8009150266
Download: ML18037A305 (2)

LER-1980-018, /03L-0:on 800808,during Normal Operation, Emergency Diesel Generator 103 Fuel Oil Day Tank Low Level Alarm Was Received.Caused by Inadvertent Opening of Day Tank Drain Valve.Tank Refilled.Oil Valve Sys Locked

Event date:
Report date:
2201980018R03 - NRC Website

text

~. NRC FORM 3GG (7-77)

LICENSEE EVENT REPORT U. S. NUCLEAR REGULATORY COMMISSION [os]

1 8

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{PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION) 6

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'IG LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58

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0 Og 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Qlo Durin normal o eration Emer enc Diesel Generator 8103 fuel oil da tank

~O3 low level alarm was received.

U on o erator res onse to the alarm it was discovered that the da tank had drained to the outside fuel stora e tank

~OG rendering the diesel ino erable.

Xt was determined that there was no

~OG si nificant effect on safe lant o eration.

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~OB 80 7

8 1

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SYSTEM

CAUSE

CAUSE COMP VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE LzzEJQ>>

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10 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LER/RO EVENT YEAR REPORT No.

CODE TYPE NO.

017 REPogT

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~03

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+0 21 22 23 24 26 27 28 29 30 31 32 ACTION.FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD 4 PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS

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SUPPLIER MANUFACTURER Ql8 ~0Q19

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'gg 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27

~lo This was caused by an inadvertant o enin of the da tank drain valve.

The subject diesel generator was declared ino erable and the redundant diesel en-erator

//102 was immediately run to demonstrate operability.

Simultaneousl f3103 3

day tank was refilled with fuel oil, and subsequently proven o erable b

the appropriate surveillance test.

Tn addition, all valves in the fuel oil (OVER) 7 8

o 8

9 11 12 LOSS OF OR DAMAGETo FACILITYQ43 TYPE

DESCRIPTION

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10 PUBLICITY ISSUED DESCRIPTION+/

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NAME DF PRFPARER >aul Harrison 7

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FACILITY STATUS

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10 12 13 44 ACTIVITY CONTENT RELEASEO OF RELEASE AMOUNTOF ACTIVITYQ G ~ Q33

~ZQ34 N/A 7

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10 I I 44'ERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39 7 ~00 0

Qgt 2

Qgs N/A 1

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11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTION QI

~oo o Q, N/A 80 80 N/A 45 LOCATIONOF RELEASE Q 80 80 80 NRC USE ONLY 80 68 69 80 PHDNE:

315 343 2110

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1212 Eg METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32

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'ONTROL BOARD ALARM 45 46

systems were secured with chians and locks to prevent future recurrances of this type of event.