05000335/LER-2012-002, Manual Trip During Physics Testing Due to Unexpected Movement of Control Element Assemblies (Ceas)

Manual Trip During Physics Testing Due to Unexpected Movement of Control Element Assemblies (Ceas)

ML12178A550
Person / Time
Site:	Saint Lucie
Issue date:	05/17/2012
From:	Richard Anderson Florida Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2012-212 LER 12-002-00
Download: ML12178A550 (4)

LER-2012-002, Manual Trip During Physics Testing Due to Unexpected Movement of Control Element Assemblies (Ceas)

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
3352012002R00 - NRC Website

text

FPL.

Florida Power & Light Company, 6501 South Ocean Drive, Jensen Beach, FL 34957 May 17, 2012 L-2012-212 10 CFR 50.73 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Re:

St. Lucie Unit 1 Docket No. 50-335 Reportable Event: 2012-002 Date of Event: March 18, 2012 Manual Trip During Physics Testing Due to Unexpected Movement of Control Element Assemblies (CEAs)

The attached Licensee Event Report 2012-002 is being submitted pursuant to the requirements of 10 CFR 50.73 to provide notification of the subject event.

rtruly yours,

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.u e Plant RLA/dlc Attachment an FPL Group company

NRC FORM 366 U.S.

NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 10/31/2013

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

13.

PAGE St. Lucie Unit 1 05000335 1 OF' 3

4.

TITLE Manual Trip During Physics Testing Due to Unexpected Movement of Control Element Assemblies (CEAs)

5.

EVENT DATE

6.

LER NUMBER

7.

REPORT DATE

8.

OTHER FACILITIES INVOLVED SEQUENTIA REV FACILITY NAME DOCKET MONTH DAY YEAR YEAR IL NUMBER NO. I MONTH DAY YEAR NA NUMBER 3

18 2012 2 012 -

002 001 05 17 2012 FACILITY NAME DOCKET NUMBER

9. OPERATING MODE

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

[1 20.2201(b)

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

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

[I 50.73(a)(2)(vii) 2 [1 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)

_]

20.2203(a)(2)(i)

[I 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) 0 50.73(a)(2)(iv)(A)

El 50.73(a)(2)(x)

Cl 20.2203(a)(2)(iii)

El 50.36(c)(2)

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

El 73.71(a)(4)

< 1%

E-20.2203(a)(2)(iv)

[] 50.46(a)(3)(ii)

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

El 73.71(a)(5)

E-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)

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

E] 50.73(a)(2)(v)(D)

Specify in Abstract below or in The corrective actions will be provided upon completion of the root cause evaluation.

Similar Events

A search of the corrective action database for three years was performed and identified no issues that were related to the faults identified with this Condition Report.

Failed Component(s)

ACTM Input/Output Board - Part No.

E-00000-431-015-2 Manufacture Westinghouse