05000317/LER-1983-046, Updated LER 83-046/01X-1:on 830816,swing Diesel Generator 12 Shut Down on Loss of Fuel Oil During Surveillance.Caused by Isolation of Day Tank Level Switches,Preventing Fuel Oil Transfer Pump & Low Level Alarm actuation.W/84033

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Updated LER 83-046/01X-1:on 830816,swing Diesel Generator 12 Shut Down on Loss of Fuel Oil During Surveillance.Caused by Isolation of Day Tank Level Switches,Preventing Fuel Oil Transfer Pump & Low Level Alarm actuation.W/840330 Ltr
ML20087N839
Person / Time
Site: Calvert Cliffs Constellation icon.png
Issue date: 03/30/1984
From: Raynor J, Russell L
BALTIMORE GAS & ELECTRIC CO.
To:
NRC OFFICE OF ADMINISTRATION (ADM)
References
LER-83-046-01X, LER-83-46-1X, NUDOCS 8404050070
Download: ML20087N839 (2)


LER-2083-046, Updated LER 83-046/01X-1:on 830816,swing Diesel Generator 12 Shut Down on Loss of Fuel Oil During Surveillance.Caused by Isolation of Day Tank Level Switches,Preventing Fuel Oil Transfer Pump & Low Level Alarm actuation.W/840330 Ltr
Event date:
Report date:
3172083046R00 - NRC Website

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h

& L ^t 1142 auring normat operations, swine diesei eenerator (Dai 4i2 snnt l lol3ll down on loss of fuel oil durine the nerformance of surveillance tesHn- l lol4ll rendering it inoperabic (T.S.3.8.1.1). Investigation revealed the level l lo ls l l switches for the day tank were isolated preventing operation of the fuel l jolell oil transfer pump and actuation of the low level alarm. It was det ermined l lol7ll that this condition existed from 10 to 16 Aucust durinc which time 11 and l lois .l 21 DGs remained operable. Similar events: none.

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l1l0 ll The cause of this event was personnel error, procedures were not followed. l ltl,ll The open corrmitments of this LER are addressed in NRC Inspection Report l lt121 l 50-317/83-22 and 50-318/83-22, detail item No. 5, sub-items f and g. l l 113_j l Since the Inspection Report conmitments parallel this LER's commitments, l M, l no further LER related actions are deemed necessarv. l

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.....:-v:'zzR,P,,0N @ R sE l21ollNl@l N/A g ggg NAME OF PREPARER J. W. Raynor psONE: 301-260-4313

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BALTIMORE G AS AND ELECTRIC COMPANY-P.O. B O X 14 7 5 B A LTIM O R E, M A R YL A N D 2120 3

' NUCLEAR POWER DEPARTMENT CALVERT CLIFFS NUCLEAR POWER PL ANT LUSBY, MARYLAND 20657

'M1rch 30, 1984

- U. -S. Nuclear Regulatory Connission Docket No. 50-317 Document Control Desk License No. DPR-53

. Washington, DC 20555

Dear Sirs:

.The attached supplemental report to LER 83-46/3X, Revision 1, is being sent to you'as required by 10 CFR 50 73 Should you have~any questions regarding this report, we would be pleased to discuss them with you.

Very truly yours, L.'.B. Russell--

Plant Superintendent W

LBR:JhR:mst cc: Dr. T. E..Murley . _

Director, Office of Management Information and Program Control Messrs: A. E. Lundvall, Jr.

J. A. Tiernan

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