05000458/LER-2003-006, Regarding Automatic Initiation of Standby Service Water System Due to Inadequate Control of System Operations

Regarding Automatic Initiation of Standby Service Water System Due to Inadequate Control of System Operations

ML031950085
Person / Time
Site:	River Bend
Issue date:	07/07/2003
From:	King R Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RBF1-03-0121, RBG-46140 LER 03-006-00
Download: ML031950085 (7)

LER-2003-006, Regarding Automatic Initiation of Standby Service Water System Due to Inadequate Control of System Operations

Event date:
Report date:
Reporting criterion:	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)(v), Loss of Safety Function
4582003006R00 - NRC Website

text

Entergy Entergy Operations, Inc.

River Bend Station 5485 U.S. Highway 61 P. 0. Box 220 St. Francisville, LA 70775 Tel 225 336 6225 Fax 225 635 5068 Rick J. King Director Nuclear Safety Assurance July 7, 2003 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

River Bend Station Docket No. 50-458 License No. NPF-47 Licensee Event Report 50-458 / 03-006-00 File Nos.

G9.5, G9.25.1.3 RBG-46140 RBF1-03-0121 Ladies and Gentlemen:

In accordance with 1 OCFR50.73, enclosed is the subject Licensee Event Report.

Commitments are summarized on the Commitment Identification Form.

Sincerely, RJK/dhw Enclosure

Licensee Event Report 50-458 1 03-006-00 July 7, 2003 RBG-46140 Page 2 of 3 cc:

U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 NRC Sr. Resident Inspector P. 0. Box 1050 St. Francisville, LA 70775 INPO Records Center E-Mail Mr. Jim Calloway Public Utility Commission of Texas 1701 N. Congress Ave.

Austin, TX 78711-3326 Louisiana Department of Environmental Quality Office of Environmental Compliance Surveillance Division Radiological Emergency Planning & Response Unit P.O. Box 4312 Baton Rouge, LA 70821-4312 Attn: Prosanta Chowdhury

Licensee Event Report 50-458 / 03-006-00 July 7, 2003 RBG-46140 Page 3 of 3 Commitment Identification Form

COMMITMENT

ONE-TIME CONTINUING ACTION*

COMPLIANCE*

An evaluation of the SWP system will be X

performed, and a resolution developed, to optimize the method of shifting pumps in order to avoid the pressure transients currently being experienced.

• Check one only

NRC FORM 366 U.S. NUCLEAR REGULATORY APPROVED BY OMB NO. 3150-0104 EXPIRES 6-30-2001 (1-2001)

COMMISSION

, the NRC 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)

River Bend Station 050- 458 1 OF 4

TITLE (4)

Automatic Initiation of Standby Service Water System Due to Inadequate Control of System Operations EVENT DATE (5)

LER NUMBER (6)

REPORT DATE (7) [

OTHER FACILUTIES INVOLVED (8)

FACILITY NAME DOCKET NUMBER MO DAY YEAR YEAR NUMBER NO MO DAY YEAR 05000 FACILITY NAME DOCKET NUMBER 05 07 2003 2003 006 00 07 07 2003 05000 OPERATIN QG

_THIS REPORT IS IIIATTED PURSUANT TO THlE RE UIREMENTS OF 10 Cl

_ (Cheek all that aDDlvi (11)

MODE ()

1

_1 20.2201(b) 20.2203(a)(3)(ii) 150.73(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) 100%

20.2203(a)(1) 50.36(c)(1)(i)(A)

X 50.73(a)(2)(iv)(A) 3.71 (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 Specify in A bstract below or in 20.2203(a)(2)(ii) 50.46(a)(3)(ii)_

50.73(a)(2)(v)(C)

(if more space is required, use additional copies of (f more space is required, use additional copies of (If more space is required, use additional copies of NRC Form 3664) (17)

CORRECTIVE ACTION TO PREVENT RECURRENCE The following actions are being taken:

1.

Management expectations regarding the administrative controls of abnormal component alignment were discussed with all operating crews.

2.

An evaluation of the SWP system will be performed, and a resolution developed, to optimize the method of shifting pumps In order to avoid the pressure transients currently being experienced.

PREVIOUS OCCURRENCE EVALUATION A review of SSW actuations since 1995 found that none were caused by routine shifts of the SWP pumps.

SAFETY SIGNIFICANCE

The standby service water system responded as designed to the low pressure initiation signal. This event was of minimal significance to the health and safety of the public.

(NOTE: Energy Industry Component Identification codes are annotated as (**XX**).)