05000317/LER-2006-002, Regarding Control Element Assembly Determined to Be Untrippable

Regarding Control Element Assembly Determined to Be Untrippable

ML061580322
Person / Time
Site:	Calvert Cliffs
Issue date:	06/05/2006
From:	Joseph E Pollock Constellation Energy Group
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
LER 06-002-00
Download: ML061580322 (5)

LER-2006-002, Regarding Control Element Assembly Determined to Be Untrippable

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
3172006002R00 - NRC Website

text

Calvert Cliffs Nuclear Power Plant Constellation Generation Group, LLC 1650 Calvert Cliffs Parkway Lusby, Maryland 20657 0

Constellation Energy June 5, 2006 U.S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION:

SUBJECT:

Document Control Desk Calvert Cliffs Nuclear Power Plant Unit No. 1; Docket No. 50-317; License No. DPR 53 Licensee Event Report 2006-002, Revision 00 Control Element Assembly Determined to be Untrippable The attached report is being sent to you as required by 10 CFR 50.73.

Should you have questions regarding this report, please contact Mr. L. S. Larragoite at (410) 495-4922.

Very truly yours, Joseph E. Pollock Plant General Manager JEP/CAN/bjd

Attachment:

As stated cc:

P. D. Milano, NRC S. J. Collins, NRC Resident Inspector, NRC R. I. McLean, DNR J leoý

NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 06/30/2007 (6-20D4)

, the NRC may digits/characters for each block)nnot condUtct 6*' sponsor, and a person Is not required to respond to, the

3. PAGE Calvert Cliffs Nuclear Power Plant, Unit 1 05000 317 1 OF 004

4. TITLE Control Element Assembly Determined to be Untrippable

5. EVENT DATE

6. LER NUMBER

7. REPORT DATE

8. OTHER FACILITIES INVOLVED MONTH DAY YEAR YEAR SEQUENTIAL REV MONTH DAY YEAR 05000 NUMBER NO.05 0

I I__

IFACILITY NAME DOCKET NUMBER 04 08 2006 2006 002 00 06 05 2006 05000

9. OPERATING MODE

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

[1 20.2201(b) 0_ 20.2203(a)(3)(i) 0l 50.73(a)(2)(i)(C) 0 50.73(a)(2)(vii) 2 0 20.2201(d)

[I 20.2203(a)(3)(ii)

El 50.73(a)(2)(ii)(A)

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

El 20.2203(a)(1)

[I 20.2203(a)(4)

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

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

[I 20.2203(a)(2)(1)

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

[0 50.73(a)(2)(iii)

[3 50.73(a)(2)(ix)(A)

10. POWER LEVEL 0 20.2203(a)(2)(ii)

El 50.36(c)(1)(ii)(A) 0 50.73(a)(2)(iv)(A) 0 50.73(a)(2)(x)

[I 20.2203(a)(2)(iii)

El 50.36(c)(2)

[] 50.73(a)(2)(v)(A) 0 73.71 (a)(4) o 20.2203(a)(2)(iv)

El 50.46(a)(3)(ii)

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

[1 73.71 (a)(5) 0 0 20.2203(a)(2)(v) 0 50.73(a)(2)(i)(A)

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

[I OTHER o 20.2203(a)(2)(vi)

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

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

Specify In Abstract below or in (if more space is required, use additional copies of (If more space is required, use additional copies of (If more space is required, use additional copies of NRC Form 366A)

D.

Additional corrective actions will be provided in a supplement to this LER.

V.

ADDITIONAL INFORMATION

A.

Component Identification Component Rod B.

Previous Occurrences

IEEE 803 EIIS Function ROD IEEE 805 System ID JD No previous similar events have occurred within the past three years.