05000338/LER-2011-002, Regarding Condition Prohibited by Technical Specifications When a Non-Seismic System Was Aligned to a Seismic System

Regarding Condition Prohibited by Technical Specifications When a Non-Seismic System Was Aligned to a Seismic System

ML11249A052
Person / Time
Site:	North Anna
Issue date:	08/27/2011
From:	Lane N Virginia Electric & Power Co (VEPCO)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
11-358, FOIA/PA-2011-0357 LER 11-002-00
Download: ML11249A052 (4)

LER-2011-002, Regarding Condition Prohibited by Technical Specifications When a Non-Seismic System Was Aligned to a Seismic System

Event date:
Report date:
Reporting criterion:	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 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
3382011002R00 - NRC Website

text

1 OCFR50.73 Virginia Electric and Power Company North Anna Power Station P. 0. Box 402 Mineral, Virginia 23117 August 27, 2011 Attention: Document Control Desk Serial No.:

11-358 U. S. Nuclear Regulatory Commission NAPS:

RAP Washington, DC 20555-0001 Docket No.: 50-338,339 License No.: NPF-4, NPF-7

Dear Sirs:

Pursuant to 10CFR50.73, Virginia Electric and Power Company hereby submit the following Licensee Event Report applicable to North Anna Power Station Units 1 and 2.

Report No. 50-338/2011-002-00 This report has been reviewed by the Facility Safety Review Committee and will be forwarded to the Management Safety Review Committee for its review.

Sincerely, N. Larry La~n Site Vice President North Anna Power Station Enclosure Commitments contained in this letter: None cc:

United States Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Ave., NE, Suite 1200 Atlanta, Georgia 30303-1257 NRC Senior Resident Inspector North Anna Power Station

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

, the NRC may digits/characters for each block) not conduct or sponsor, and a person is not required to respond to, the information collection.

3. PAGE NORTH ANNA POWER STATION, UNIT 1 and 2 05000 338 1 OF 3

4. TITLE Condition Prohibited by Technical Specifications When a Non-Seismic System was Aligned to a Seismic System

5. EVENT DATE

6. LER NUMBER

7. REPORT DATE

8. OTHER FACILITIES INVOLVED MONTH DAY YEAR YEAR SEQUENTIAL REV MONTH DAY YEAR FACILITY NAME DOCUMENT NUMBER NUMBER NO.

North Anna Power Station 05000 339 06 29 2011 2011 I -- 002--

00 08 27 2011 FACILITY NAME DOCUMENT NUMBER j

05000

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)

[]

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

[

50.73(a)(2)(vii)

El 20.2201(d)

E] 20.2203(a)(3)(ii) 50.73(a)(2)(ii)(A)

El 50.73(a)(2)(viii)(A) 1 E] 20.2203(a)(1)

El 20.2203(a)(4)

H 50.73(a)(2)(ii)(B)

[] 50.73(a)(2)(viii)(B)

E] 20.2203(a)(2)(i)

[] 50.36(c)(1)(i)(A)

E]

50.73(a)(2)(iii)

[]

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

10. POWER LEVEL E] 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)

[]

50.36(c)(2)

[]

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

El 73.71(a)(4)

[]

20.2203(a)(2)(iv)

[]

50.46(a)(3)(ii)

[]

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

[]

73.71(a)(5)

El 20.2203(a)(2)(v)

E]

50.73(a)(2)(i)(A)

E]

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

[]

OTHER 100%

El 20.2203(a)(2)(vi)

[]

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

[

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

Specify in Abstract below

_______________________or in 4.0 IMMEDIATE CORRECTIVE ACTION(S)

Operating procedures associated with placing the non-seismic RP system in service on seismic systems were suspended.

5.0

ADDITIONAL CORRECTIVE ACTIONS

The UFSAR will be updated to reflect current operating practices.

An assignment has been created in the Corrective Action System to evaluate the extent of condition.

Additional corrective actions being considered include evaluating what is required to qualify the RP system as seismic and revising operating procedures to allow operation of the RP system on the RWST in Modes 5, 6 and defueled.

6.0 ACTIONS TO PREVENT RECURRENCE The actions noted above are sufficient to preclude recurrence.

7.0 SIMILAR EVENTS

There have been no similar events at North Anna.

8.0 ADDITIONAL INFORMATION

Both Units were in Mode 1,100 percent power, at the time of this event and were not affected.