05000461/LER-2013-006, Implementation of Enforcement Guidance Memorandum (EGM) 11-003, Revision 1

Implementation of Enforcement Guidance Memorandum (EGM) 11-003, Revision 1

ML13357A202
Person / Time
Site:	Clinton
Issue date:	12/11/2013
From:	Taber B Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
EGM 11-003, Rev 1, U-604150 LER 13-006-00
Download: ML13357A202 (4)

LER-2013-006, Implementation of Enforcement Guidance Memorandum (EGM) 11-003, Revision 1

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
LER closed by
IR 05000461/2013005 (11 February 2014)
4612013006R00 - NRC Website

text

E Exelon Generation, Clinton Power Station 8401 Power Road Clinton, IL 61727 U-604150.;

December 11, 2013 1 OCFR50.73 SRRS 5A.108 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Clinton Power Station, Unit 1 Facility Operating License No. NPF-62 NRC Docket No. 50-461

Subject:

Licensee Event Report 2013-006-00 Enclosed is Licensee Event Report (LER) No. 2013-006-00: Implementation of Enforcement Guidance Memorandum (EGM) 11-003, Revision 1. This report is being submitted in accordance with the requirements of 10 CFR 50.73.

There are no regulatory commitments contained in this report.

Should you have any questions concerning this report, please contact Mr. Jeffrey E. Cunningham, Acting Regulatory Assurance Manager, at (217) 937-2200.

Respectfully, B. Keith Taber Site Vice President Clinton Power Station JLP/blf

Enclosure:

Licensee Event Report 2013-006-00 cc:

Regional Administrator - NRC Region III NRC Senior Resident Inspector - Clinton Power Station Office of Nuclear Facility Safety - IEMA Division of Nuclear Safety 00

FANRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 10/31/2013 (10-20 10)

, the NRC may dt/h ts for each block) not conduct or sponsor, and a person is not required to respond to, the igitscaraters information collection.

3. PAGE Clinton Power Station, Unit 1 05000461 1 OF 3

4. TITLE Implementation of Enforcement Guidance Memorandum (EGM) 11-003, Revision 1

5. EVENT DATE

6. LER NUMBER

7. REPORT DATE

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

MONTH DAY YEAR 05000 FACILITY NAME DOCKET NUMBER 10 13 2013 2013

- 006 -

00 12 11 2013 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)

[l 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)

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

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

C1 20.2203(a)(2)(i)

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

[I 50.73(a)(2)(iii)

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

10. POWER LEVEL [I 20.2203(a)(2)(ii)

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

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

[I 50.73(a)(2)(x)

El 20.2203(a)(2)(iii)

[I 50.36(c)(2)

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

[1 73.71 (a)(4) 000 [1 20.2203(a)(2)(iv)

El 50.46(a)(3)(ii)

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

El 73.71(a)(5)

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)

[

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

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

Specify in Abstract below or in

D. SAFETY ANALYSIS

This event is reportable in accordance with 10 CFR 50.73(a)(2)(i)(B) as an operation prohibited by CPS Technical Specification 3.6.4.1, Secondary Containment, which prohibits performing activities identified as OPDRV's in Mode 5 with secondary containment inoperable.

The OPDRV activities described in this report were accomplished using the interim actions provided by the NRC in EGM 11-003, Revision 1. CPS adhered to the NRC plain language meaning of OPDRV activities that could potentially result in draining or siphoning the RPV water level below the top of the fuel. This included evolutions involving aligning and realigning plant systems prior to achieving steady-state water level control, without taking credit for mitigating measures. CPS also met the requirements which specify the minimum makeup flow rate and water inventory. Further, an adequate defense in depth was maintained to minimize the potential for the release of fission products with secondary containment inoperable. Since these measures were implemented, an adequate level of safety was provided during the performance of the OPDRV activities described in this report.

E. CORRECTIVE ACTIONS

CPS will submit a license amendment request following NRC approval of the Technical Specification Task Force (TSTF) traveler associated with generic resolution of this issue within the time constraints specified in EGM 11-003.

F. PREVIOUS OCCURRENCES

None.

G. COMPONENT FAILURE DATA

Not applicable.