05000272/LER-2011-001, Re Service Water Loop Inoperable for Greater than Allowed by Technical Specifications

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Re Service Water Loop Inoperable for Greater than Allowed by Technical Specifications
ML110880098
Person / Time
Site: Salem 
Issue date: 03/18/2011
From: Fricker C
Public Service Enterprise Group
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
LR-N11-0083 LER 11-001-00
Download: ML110880098 (5)


LER-2011-001, Re Service Water Loop Inoperable for Greater than Allowed by Technical Specifications
Event date:
Report date:
Reporting criterion: 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications

10 CFR 50.73(a)(2)(i)

10 CFR 50.73(a)(2)(vii), Common Cause Inoperability

10 CFR 50.73(a)(2)(ii)(A), Seriously Degraded

10 CFR 50.73(a)(2)(viii)(A)

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

10 CFR 50.73(a)(2)(viii)(B)

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

10 CFR 50.73(a)(2)(ix)(A)

10 CFR 50.73(a)(2)(iv)(A), System Actuation

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)(i)(A), Completion of TS Shutdown

10 CFR 50.73(a)(2)(v), Loss of Safety Function
2722011001R00 - NRC Website

text

PSEG Nuclear LLC PO. Box 236, Hancocks Bridge, NJ 08038-0236 0

PSEG Nuclear LLC MAR 18 2011 1 0CFR50.73 LR-Nl1-0083 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington DC 20555-001 LER 272/2011-001 Salem Nuclear Generating Station Unit 1 Facility Operating License No. DPR-70 NRC Docket No. 50-272

Subject:

Service Water Loop Inoperable for Greater Than Allowed by Technical Specifications This Licensee Event Report, "Service Water Loop Inoperable for Greater Than Allowed by Technical Specifications" is being submitted pursuant to the requirements of the Code of Federal Regulations 10CFR50.73 (a)(2)(i)(B).

There are no regulatory commitments contained in this letter.

Should you have any questions or comments regarding this submittal, please contact Mr. Howard Berrick at 856-339-1862.

Sincerw a~rYJ.Fricker Site Vice President - Salem Attachments (1)

KARL z

Document Control Desk MAR 1 8 2011 Page 2 LR-Nl1-0083 cc Mr. W. Dean, USNRC - Administrator - Region I Mr. R. Ennis, USNRC - Licensing Project Manager - Salem USNRC Senior Resident Inspector - Salem (X24)

Mr. P. Mulligan, NJBNE Manager IV Mr. H. Berrick, Salem Commitment Tracking Coordinator Mr. L. Marabella, Corporate Commitment Tracking Coordinator

NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 10/31/2013 (10-2010)

, the NRC may not conduct or sponsor, and a person is not required to respond to, the information collection.

3. PAGE Salem Generating Station - Unit 1 05000272 1 of 3
4. TITLE Service Water Loop Inoperable for Time Greater Than Allowed by Technical Specification
5. EVENT DATE
6. LER NUMBER
7. REPORT DATE
8. OTHER FACILITIES INVOLVED SEQUENTI AL REV FACILITY NAME DOCKET NUMBER MONTH DAY YEAR YEAR NUMBER NO.

MONTH DAY YEAR DOCKET NUMBER 01 17 2011 2011 0 0 1 0 03 18 2011

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

El 20.2201(b)

[I 20.2203(a)(3)(i)

E0 50.73(a)(2)(i)(C)

El 50.73(a)(2)(vii) 10 20.2201(d)

El 20.2203(a)(3)(ii)

[I 50.73(a)(2)(ii)(A)

El 50.73(a)(2)(viii)(A)

[I 20.2203(a)(1)

El 20.2203(a)(4)

El 50.73(a)(2)(ii)(B)

El 50.73(a)(2)(viii)(B)

El 20.2203(a)(2)(i)

El 50.36(c)(1)(i)(A)

El 50.73(a)(2)(iii)

El 50.73(a)(2)(ix)(A)

10. POWER LEVEL El 20.2203(a)(2)(ii)

El 50.36(c)(1)(ii)(A)

El 50.73(a)(2)(iv)(A)

El 50.73(a)(2)(x)

El 20.2203(a)(2)(iii)

[I 50.36(c)(2)

El 50.73(a)(2)(v)(A)

El 73.71(a)(4)

El 20.2203(a)(2)(iv)

[I 50.46(a)(3)(ii)

El 50.73(a)(2)(v)(B)

El 73.71(a)(5) 100 [E

20.2203(a)(2)(v)

[I 50.73(a)(2)(i)(A)

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

E] OTHER El 20.2203(a)(2)(vi)

[

50.73(a)(2)(i)(B)

El 50.73(a)(2)(v)(D)

Specify in Abstract below or in CAUSE OF OCCURRENCE The cause of this occurrence is attributed to untimely repairs to the corroded power supply cable stanchion. In 2006, the No. 12 SW strainer power supply cable stanchion had been inspected and corrosion was found at the base. Pipe wall measurements were acceptable and although it was noted there was little margin remaining, the stanchion was cleaned to base metal and protectively recoated. A work order was initiated to repair the stanchion but had not been worked as of December 9, 2010.

PREVIOUS OCCURRENCES

A review of LERs for Salem Units 1 and 2 back to 2006 did not identify any previous similar occurrences.

SAFETY CONSEQUENCES AND IMPLICATIONS

There was no actual safety consequences associated with this event. _This condition only impacted the No.12 SW pump during a seismic event. -There was no impact to the No. 12 SW pump operation during a loss of coolant accident (LOCA), loss of offsite power (LOOP) or a LOCA/LOOP. The potential loss of an additional service water pump during a seismic event was assessed for its impact.

The most limiting condition was determined to be a seismic event with loss of offsite power and a failure of either the "A" or "B" Emergency Diesel Generators which would result in one SW pump in service.

Operations procedures provide sufficient guidance for subsequent actions to mitigate any adverse consequences of such an event. During the eight instances identified where the SW Technical Specification LCO was exceeded, all diesels were available to support SW pump operation.

A review of this event determined that a Safety System Functional Failure (SSFF) as defined in NEI 99-02, Regulatory Assessment Performance Indicator Guidelines, did not occur. There was no condition that alone could have prevented the fulfillment of a safety function of a system needed to mitigate the consequences of an accident.

CORRECTIVE ACTIONS

1. The No. 12 SW power supply cable support stanchion was repaired and returned to service.
2. All Salem Unit 1 and 2 SWIS SW Strainer stanchions were inspected and found to be operable.
3. An evaluation is in progress; any additional corrective actions associated with this event will be tracked in the PSEG Corrective Action Program.

COMMITMENTS

No commitments are made in this LER.