05000336/LER-2006-001, Loss of Charging Function

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Loss of Charging Function
ML061220570
Person / Time
Site: Millstone Dominion icon.png
Issue date: 04/17/2006
From: Scace S
Dominion Nuclear Connecticut
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
06-171A LER 06-001-00
Download: ML061220570 (5)


LER-2006-001, Loss of Charging Function
Event date:
Report date:
Reporting criterion: 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition

10 CFR 50.73(a)(2)

10 CFR 50.73(a)(2)(iii)

10 CFR 50.73(a)(2)(x)

10 CFR 50.73(a)(2)(v)(A), Loss of Safety Function - Shutdown the Reactor

10 CFR 50.73(a)(2)(v)(B), Loss of Safety Function - Remove Residual Heat

10 CFR 50.73(a)(2)(v), Loss of Safety Function

10 CFR 50.73(a)(2)(i)(A), Completion of TS Shutdown
3362006001R00 - NRC Website

text

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Dominion-Dominion Nuclear Connecticut, Inc.

Millstone Power Station Rope Ferry Road Waterford, CT 06385 APR 17 2006 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Serial No.

MPS Lic/GJC Docket No.

License No.

06-171A RO 50-336 DPR-65 DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNIT 2 LICENSEE EVENT REPORT 2006-001-00 LOSS OF CHARGING FUNCTION Licensee Event Report (LER) 2006-001-00, documenting an event that occurred at Millstone Power Station Unit 2 on January 9, 2006 was inadvertently sent without the report date. This letter forwards a corrected copy of the LER that includes the report date.

If you have any questions or require additional information, please contact Mr. David W.

Dodscn at (860) 447-1791, extension 2346.

Very truly yours, ep en.Scace Director Nuclear Station Safety & Licensing - Millstone Attachments:

(1)

Commitments made in this letter: None.

cc: None I 1-O Millstone Power Station Unit 2 LER 2006-001-00 Millstone Power Station Unit 2 Dominion Nuclear Connecticut, Inc. (DNC)

NRC FORM 366 NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 06/30/2007 (6-2004)

, the NRC (See reverse for required number of digits/characters for each block) may not conduct or sponsor, and a person is not required to respond to, the information collection.

FACILITY NAME (1)

DOCKET NUMBER (2)

PAGE (3)

Millstone Power Station - Unit 2 05000336 1 of 3 TITLE (4)

Loss of Charging Function EVENT D kTE (5)

LER NUMBER (6)

REPORT DATE (7)

OTHER FACILITIES INVOLVED 1:8)

_l FACILITY NAME DOCKET NUMBER-MO DAY YEAR YEAR SEQUENTIAL I REV MO DAY YEAR 05000 NUMBER NO.

0 DY EA FACILITY NAME DOCKET NUMBER 01 09 2006 2006-001-00 03 07 06 05000 OPERATING 1

THIS REPORT IS SUBMITTED PURSUANT TO THE REQUIREMENTS OF 10 CFR§: (Check all that npply) (11)

MODE (9) 20.2201 (b) 20.2203(a)(3)(ii) 50.73(a)(2)(ii)(B) 50.73(a)(2)(Qx'(A)

POWER 100 20.2201 (d)

__20.2203(a)(4) 50.73(a)(2)(iii) 50.73(a)(2)(x)

LEVEL (1

- 20.2203(a)(1) 50.36(c)(1)(i)(A) 50.73(a)(2)(Iv)(A) 73.71 (a) (4) 20.2203(a)(2)(i) 50.36(c)(1)(ii)(A)

X 50.73(a)(2)(v)(A) 73.71 (a) (5) 20.2203(a)(2)(ii) 50.36(c)(2) 50.73(a)(2)(v)(B)

OTHER 20.2203(a)(2)(iii) 50.46(a)(3)(ii) 50.73(a)(2)(v)(C)

Specify In Abstract below or 20.2203(a)(2)(ivL.

50.73(a)(2)(i)(A) 50.73(a)(2)(v)(D)

In (If more Space is required, use additional copies of NRC Form 366A) (17)

4.

Corrective Action

A supplement to this Licensee Event Report will be submitted by May 31, 2006.

5.

Previous Occurrences

A previous event occurred on Unit 2 on March 7, 2003 which resulted in the loss of the charging function. This was reported in LER 2003-003-00 and supplemented in LER 2003-003-01 Energy Industry Identification System (EIIS) codes are identified in the text as [XX].