05000423/LER-2005-001, Regarding Hydrogen Recombiners Out of Service

Regarding Hydrogen Recombiners Out of Service

ML052570422
Person / Time
Site:	Millstone
Issue date:	09/01/2005
From:	Price A Dominion Nuclear Connecticut
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
05-350 LER 05-001-00
Download: ML052570422 (6)

LER-2005-001, Regarding Hydrogen Recombiners Out of Service

Event date:
Report date:
Reporting criterion:	10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(ix)(A) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iv)(A), System Actuation 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)
4232005001R00 - NRC Website

text

,o Dominions Dominion Nuclear Connecticut, Inc.

Millstone Power Station Rope Ferry Road Waterford, C7 06385 SEP I 2005 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Serial No.

MPS Lic/BAK Docket No.

License No.05-350 RO 50-423 NPF-49 DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNIT 3 LICENSEE EVENT REPORT 2005-001-00, HYDROGEN RECOMBINERS OUT OF SERVICE This letter forwards Licensee Event Report (LER) 2005-001-00, documenting an event that occurred at Millstone Power Station Unit 3, on February 24, 2005. This LER is being submitted pursuant to 10 CFR 50.73(a)(2)(i)(B), as any event or condition prohibited by the plant's Technical Specifications and 10 CFR 50.73(a)(2)(v)(D), related to a condition that could have prevented the fulfillment of the safety function of a system.

If you have any questions or require additional Mr. David W. Dodson at (860) 447-1791, extension 2346.

information, please contact Very truly yours, J Al n Price S t ice President - Millstone

a I

Serial No.05-350 LER 2005-001 -00 Page 2 of 2 Attachments:

1 Commitments made in this letter: None.

cc:

U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406-1415 Mr. G. F. Wunder Project Manager U.S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mail Stop 08-B-1A Rockville, MD 20852-2738 Mr. S. M. Schneider NRC Senior Resident Inspector Millstone Power Station

Serial No.05-350 LER 2005-001-00 HYDROGEN RECOMBINERS OUT OF SERVICE Millstone Power Station Unit 3 Dominion Nuclear Connecticut, Inc. (DNC)

NRC FORM 366 U.S. NUCLEAR REGULATORY APPROVED BY OMB NO. 3150-0104 (7i1 COMMIS, the NRC may not conduct or (See reverse for required number of digits/characters for each block) 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 3 05000423 1 OF 3 TITLE (4)

Hydrogen Recombiners Out Of Service EVENT DATE (5)

LER NUMBER (6)

REPORT DATE (7)

OTHER FACILITIES INVOLVED (8)

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

DY YA FACILITY NAME DOCKET NUMBER 02 24 2005 2005-001-00 08 25 2005 OPERATING 1

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

MODE (9) 1 20.2201(b)

I 20.2203(a)(3)(ii) 50.73(a)(2)(ii)(B) 50.73(a)(2)(ix)(A)

POWER 20.2201(d)

_ 20.2203(a)(4)

_ 50.73(a)(2)(iii)

_ 50.73(a)(2)(x)

LEVEL (10) 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) 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)(iv) 50.73(a)(2)Ci)(A)

X 50.73(a)(2)(v)(D) in (If more space is required, use additional copies of NRC Fonn 366A) (17)

4.

Corrective Action

The compression joint was repaired (on February 28, 2005) via AWO M3-05-04144 and a post maintenance acceptance test was satisfactorily performed.

The maintenance department communicated compression fitting fit-up requirements and work practices to minimize the potential for a repeat event of this type. Additional corrective actions were included in the station's corrective action program.

5.

Previous Occurrences

Internal operating experience was reviewed and did not provide any additional information.

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