05000336/LER-2003-003, For Millstone Unit 2 the Charging System Did Not Perform Its Design Function in Response to Falling Pressurizer Level

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For Millstone Unit 2 the Charging System Did Not Perform Its Design Function in Response to Falling Pressurizer Level
ML031330641
Person / Time
Site: Millstone Dominion icon.png
Issue date: 05/02/2003
From: Sarver S
Dominion Nuclear Connecticut
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
B18887 LER 03-003-00
Download: ML031330641 (5)


LER-2003-003, For Millstone Unit 2 the Charging System Did Not Perform Its Design Function in Response to Falling Pressurizer Level
Event date:
Report date:
Reporting criterion: 10 CFR 50.73(a)(2)(v)(A), Loss of Safety Function - Shutdown the Reactor

10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications

10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition

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

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

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
3362003003R00 - NRC Website

text

Dominion Nuclear Connecticut, Inc.

Millstone Power Station Rope Ferry Road Waterford, CT 06385

,a Dominion MAY 2 2D03 Docket No. 50-336 B18887 RE: 10 CFR 50.73(a)(2)(v)(A) 10 CFR 50.73(a)(2)(i)(B)

U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Millstone Power Station, Unit No. 2 Licensee Event Report 2003-003-00 The Charging System Did Not Perform Its Design Function in Response to Falling Pressurizer Level This letter forwards Licensee Event Report (LER) 2003-003-00, which documents an event at Millstone Power Station, Unit No. 2, which occurred on March 7, 2003. This LER is being submitted pursuant to 10 CFR 50.73(a)(2)(v)(A), an event or condition that could have prevented fulfillment of a safety function, and 10 CFR 50.73(a)(2)(i)(B), any operation or condition prohibited by the plant's Technical Specifications.

There are no regulatory commitments contained within this letter.

Should you have any questions regarding this submittal, please contact Mr. David W. Dodson at (860) 447-1791, extension 2346.

Very truly yours, DOMINION NUCLEAR CONNECTICUT, INC.

StephervP. Sark'er, Director Nuclear Station Operations and Maintenance Attachments (1):

LER 2003-003-00 cc:

H. J. Miller, Region I Administrator R. B. Ennis, NRC Senior Project Manager, Millstone Unit No. 2 Millstone Senior Resident Inspector I-

/",--31-1

Docket No. 50-336 B18887 Millstone Power Station, Unit No. 2 LER 2003-003-00

~~~~~~~~~~~~~~~~~~~~~~~~~~--

NRC FORM 366 U.S. NUCLEAR REGULATORY APPROVED BY OMB NO.31150-0104 EXPIRES 7-31-2004 (7-2001 COMMISSION

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

FACILITY NAME (1)

DOCKET NUMBER (2)

PAGE (3)

Millstone Power Station - Unit No. 2 05000336 1 OF 3

TITLE (4)

The Charging System Did Not Perform Its Design Function in Response to Falling Pressurizer Level EVENT DATE (5)

LER NUMBER (6)

[

REPORT DATE (7)

OTHER FACILITIES INVOLVED (8)

MO DAY YEAR YEAR SEQUENTIAL REV MO DAY YEAR FACILITY NAME DOCKET NUMBER INUMBER NO.

05000 03 07 2003 2003 -

003 - 00 05 02 2003 FACILITY NAME IDOCKET NUMBER 05000 OPERATING 1

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

M ODE (9) 20.2201 (b) 20.2203(a)(3)(ii) 50.73(a)(2)(ii)(B) s0.73(a)(2)(ix)(A)

POWER 100 20.2201 (d) 20.2203(a)(4) 50.73(a)(2)(iii) 50.73(a)(2)(x)

LEVEL (1 0_

20.2203(a)(1)

__ 50.36(c 1)(ii)(A) 0.73(a)(2)(iv)(A) 73.71 (a)(4) 20.2203(a)(2)(i)

X 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 X

W-P t_20.2203(a)(2)(iii) 0.46(a)(3)(ii) 50.73(a)(2)(v)(C)

Specify In Abstract below or 20.2203(a)(2)(iv) 50.73(a)(2)(i)(A) 0.73(a)(2)(v)(D) in (If more space Is required, use additional copies of NRC Form 366A) (17)

5. Previous Occurrences

No previous similar events were identified.

Energy Industry Identification System (EIIS) codes are identified in the text as [XX].