05000220/LER-2003-003, Regarding Automatic Initiation of Emergency Diesel Generator 103 Due to Momentary Loss of Offsite Power

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Regarding Automatic Initiation of Emergency Diesel Generator 103 Due to Momentary Loss of Offsite Power
ML040210790
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 01/12/2004
From: Hopkins L
Constellation Energy Group
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
NMP1L 1807 LER 03-003-00
Download: ML040210790 (4)
v • d • e


LER-2003-003, Regarding Automatic Initiation of Emergency Diesel Generator 103 Due to Momentary Loss of Offsite Power
Event date:
Report date:
Reporting criterion: 10 CFR 50.73(a)(2)(iv)(A), System Actuation
10 CFR 50.73(a)(2)
2202003003R00 - NRC Website
v • d • e

text

P.O. Box 63 Lycoming, New York 13093 Constellaton Energyroup Nine Mile Point Nuclear Station January 12, 2004 NMP1L 1807 United States Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

Nine Mile Point Unit 1 Docket No. 50-220 Facility Operating License No. DPR-63 Licensee Event Report 03-003, "Automatic Initiation of Emergency Diesel Generator 103 due to Momentary Loss of Offsite Power' Gentlemen:

In accordance with 10 CFR 50.73(a)(2)(iv)(A), we are submitting Licensee Event Report (LER)03-003, "Automatic Initiation of Emergency Diesel Generator 103 due to Momentary Loss of Offsite Power."

Very truly yours, Lawrence A. Hopkins Plant General Manager LAH/JT/bjh Attachment cc:

Mr. H. J. Miller, NRC Regional Administrator, Region I Mr. G. K. Hunegs, NRC Senior Resident Inspector

NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB NO. 3150-0104 EXPIRES 74312004 (1-2001)

Estimated burden per response to comply wdh this mandatory Information cdlection request: 50 hours5.787037e-4 days <br />0.0139 hours <br />8.267196e-5 weeks <br />1.9025e-5 months <br />. Repouted lessons learned are hIcorporated bIto the lcensing process and fed back to Indusbty. Send comments regarding burden estimate to he Records Management Brancl CT-6 E6). U.S. Nuclear Regulatory Commission. Washington. DC LICENSEE EVENT REPORT (LER) 20555-001.orbyitermet eiallto b ^1Pnrce r

g andtotheDesk Offcer Office of Information and Regulatory Affars, NEOiB10202 (31504104), Office Management nd Budget. Washington, Dc 20sa.

a means used o Imnpose Information colledion does not display

  • currently valid OMB cntrol number. the NRC may not conduct or sponsor, and a person Is not required to respond lo, the hIformation

____________________________ ~~~~~~~~~collection.

FACLITY NAME (1)

OOCKET NUUBER (M) j PAGE 0)

Nine Mile Point, Unit 1 05000220 1 OF 3

TITLE (4) utomatic Initiation of Emergency Diesel Generator 103 due to Momentary Loss of Offsite Power EVENT DATE 05)

LER NUIMBER (6)

REPORT DATE (1)

OTHER FACILITIES iNVOLVED (8)

MO DAY YEAR YEAR SEQUEPMAL REV MO DAY YEAR LiTY NAME DOCKET NUMBER NUMBER NO f

L 05000 11 13 2003 2003 -

003 -

00 1

121 2004 ACiTY NAME DOCKET NUMBER

~~~~~~~~~~~~05000 ii -

I 1_______

50 OPERATING TiS REPORT IS SUBMifED PURSUANT TO THE REQUIREMENTS OF 10 CFRI: (Chck ll tha apply) (11)

MODE 0)

I_

20.2201 (b) 202203(a)(3)00 50.73(a)(2)((B) 50.73(a)(2X(bO(A)

POWER LEVEL (10) 202201(d) 202203(a)(4) 50.73(a)(2)O) 50.73(aNO)(2)()

100

_ 20.2203(a)(1) 50,36(CXIX)(i(A)

X 50.73(a)(2)(Iv)(A) 73.71 (a)(4)

/

2 _

20 2203(a)(2)0) 50.36(cX1(I)(A) 50.73(a)(2)(vXA) 73.71 (a)(5)

~' 20.2203(aX)(II)Q 50.36(c)X2) 150.73(aX(2)(VX(B)

OTHER 20i 2._203(a)(2)00) 50.4(a)(3)(I) 50.73(a)(2)(vXC)

_Specif In Abstract below or hI 20.2203(a)(2))

50.73(aX2)(1XA) 50.73(aX2)(vXD) f morne space Is Aquired, use addtonal coies of NRC Form 366A) (I7)

IV. Corrective Actions

Immediate actions included verification that the plant responded properly to the loss of Une #4 event and entry into appropriate operating procedures. Reserve bus disconnect switch MDS-8106 has been repaired. Preventive maintenance procedures will be generatedl revised, as necessary, to enhance reliability of the subject switch.

V. Additional Information

1. Failed Components: None
2.

Previous similar events

None

3.

Identification of components referred to in this Ucensee Event Report:

Components IEEE 805 System ID IEEE 803A Function 115 kV Offsite Power System FK N/A Emergency Diesel Generator EK DG Reserve Bus FK BU Disconnect Switch FK DISC Recirculation Pump AD P

Power Board EB BD

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