05000443/LER-2011-001, For Seabrook Station, Regarding Noncompliance with Technical Specifications for Leakage Detection Instruments
| ML11144A290 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 05/20/2011 |
| From: | Freeman P NextEra Energy Seabrook |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| SBK-L-11108 LER 11-001-00 | |
| Download: ML11144A290 (4) | |
| 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 |
| 4432011001R00 - NRC Website | |
text
NEXTeraM ENERG"-Y May 20, 2011 10 CFR 50.73 Docket No. 50-443 SBK-L-11108 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Seabrook Station Licensee Event Report (LER) 2011-001-00 Noncompliance with Technical Specification for Leakage Detection Instruments Enclosed is Licensee Event Report (LER) 2011-001-00. This LER reports an event that was discovered at Seabrook Station on March 24, 2011. This event is being reported pursuant to the requirements of 10 CFR 50.73(a)(2)(i)(B).
Should you require further information regarding this matter, please contact Mr. Michael O'Keefe, Licensing Manager, at (603) 773-7745.
Sincerely, NextEra Energy Seabrook, LLC Paul Freeman Site Vice President cc:
NRC Region I Administrator G. E. Miller, NRC Project Manager W. J. Raymond, NRC Senior Resident Inspector NextEra Energy Seabrook, LLC, P.O. Box 300, Lafayette Road, Seabrook, NH 03874
NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 10/31/2013 (10-2010)
Estimated burden per response to comply with this mandatory collection request: 80 hours9.259259e-4 days <br />0.0222 hours <br />1.322751e-4 weeks <br />3.044e-5 months <br />. Reported lessons learned are incorporated into the licensing process and fed back to industry. Send comments regarding burden estimate to the FOIA/Privacy Section (T-5 F53), U.S. Nuclear LICENSEE EVENT REPORT (LER)
Regulatory Commission, Washington, DC 20555-0001, or by internet e-mail to infocollects.resourse@nrc.gov, and to the Desk Officer, Office of Information and Regulatory Affairs, NEOB-10202, (3150-0104), Office of Management and Budget, Washington, DC 20503. If a means used to impose an information collection does not display a currently valid OMB control number, the NRC may not conduct or sponsor, and a person is not required to respond to, the information collection.
- 13. PAGE Seabrook Station 05000443 1 OF 3
- 4. TITLE Noncompliance with Technical Specification for Leakage Detection Instruments
- 5. EVENT DATE
- 6. LER NUMBER
- 7. REPORT DATE
- 8. OTHER FACILITIES INVOLVED MONTH DAY YEAR YEAR SEQUENTIAL REV MONTH DAY YEAR FACILITYNAM DOCKET NUMBER NUMBER NO.
FACILITY NAME DOCKET NUMBER 03 24 2011 2011 -
001 00 05 20 2011
- 9. OPERATING MODE
- 11. THIS REPORT IS SUBMITTED PURSUANT TO THE REQUIREMENTS OF 10 CFR§: (Check all that apply)
El 20.2201(b)
El 20.2203(a)(3)(i)
[I 50.73(a)(2)(i)(C)
El 50.73(a)(2)(vii)
El 20.2201(d)
El 20.2203(a)(3)(ii)
El 50.73(a)(2)(ii)(A)
El 50.73(a)(2)(viii)(A)
El 20.2203(a)(1)
El 20.2203(a)(4) 0l 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)
[E 20.2203(a)(2)(iii) 0l 50.36(c)(2)
[I 50.73(a)(2)(v)(A)
El 73.71(a)(4) 0%
El 20.2203(a)(2)(iv)
El 50.46(a)(3)(ii)
El 50.73(a)(2)(v)(B)
El 73.71(a)(5) 10 El 20.2203(a)(2)(v)
El 50.73(a)(2)(i)(A)
El 50.73(a)(2)(v)(C)
El OTHER El 20.2203(a)(2)(vi) 0 50.73(a)(2)(i)(B)
El 50.73(a)(2)(v)(D)
Specify in Abstract below or in out of service while relying on non-qualified gaseous monitor RM 6548 to satisfy the TS requirement for an operable gaseous monitor. This condition existed on October 5, 2010; December 15, 2010, January 4, 2011; and March 10, 2011. Since RM 6548 cannot be used as one of the leakage detection instruments credited for compliance with TS 3.4.6.1, operating with RM 6526 out of service for greater than six hours resulted in operation in a condition prohibited by the TS. Therefore, this condition is reportable in aa licensee event report (LER) in accordance with 10 CFR 50.73(a)(2)(i)(B).
This event is of regulatory importance because it resulted in a condition prohibited by the TS; however, the condition is not significant to safety. No adverse consequences resulted from this condition, and the event had no adverse impact on the health and safety of the public or the plant and its personnel. No other structures, systems, or components were inoperable at the start of the event and contributed to this event. This event did not involve a safety system functional failure.
Corrective Actions
The station implemented a design change that upgraded the seismic qualification of the containment atmosphere gaseous radioactivity monitor (RM 6548) to meet the requirements of RG 1.45.
Additional Information
The Energy Industry Identification System (EIIS) codes are included in this LER in the following format: [EIIS system identifier, ElIS component identifier].
Similar Events
LER 2004-001 documented a similar condition that resulted in a condition prohibited by the TS. This LER reported that the accident monitoring instruments associated with containment enclosure negative pressure were determined to be inoperable because they did not encompass the required range of pressure necessary to monitor the variable under all conditions.