05000317/LER-2006-003, Re Impact on Safety-Related Equipment Not Considered When High Energy Line Break Barrier Removed

Re Impact on Safety-Related Equipment Not Considered When High Energy Line Break Barrier Removed

ML063030375
Person / Time
Site:	Calvert Cliffs
Issue date:	10/26/2006
From:	Joseph E Pollock Constellation Generation Group
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
LER 06-003-00
Download: ML063030375 (7)

LER-2006-003, Re Impact on Safety-Related Equipment Not Considered When High Energy Line Break Barrier Removed

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
3172006003R00 - NRC Website

text

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

Constellation Energy October 26, 2006 U.S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION:

SUBJECT:

Document Control Desk Calvert Cliffs Nuclear Power Plant Unit Nos. 1 & 2; Docket Nos. 50-317 & 50-318; License Nos. DPR 53 and DPR 69 Licensee Event Report 2006-003 Impact on Safety-Related Equipment not Considered When High Energy Line Break Barrier Removed 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. Jay S. Gaines at (410) 495-4922.

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

Attachment:

As stated cc:

P. D. Milano, NRC S. J. Collins, NRC Resident Inspector, NRC R. I. McLean, DNR 22.

NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 06/30/2007 (6-2004)

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

3. PAGE Calvert Cliffs Nuclear Power Plant 05000317 1 OF 006

4. TITLE Impact on Safety-Related Equipment not Considered When High Energy Line Break Barrier Removed

5. EVENT DATE

6. LER NUMBER

7. REPORT DATE 1

8. OTHER FACILITIES INVOLVED MONTH DAY YEAR SEQUENTIAL REV M

DFACILITY NAME DOCKET NUMBER NUMBER NO.

y EAR Calvert Cliffs, Unit 2 05000D318 FACILITY NAME DOCKET NUMBER 08 30 2006 2006 03 00 10 26 2006

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)

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

E 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)

[E 20.2203(a)(1)

El 20.2203(a)(4)

ER 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)

[I 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)

El 50.36(c)(2)

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

[j 73.71 (a)(4)

El 20.2203(a)(2)(iv)

El 50.46(a)(3)(ii)

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

[] 73.71 (a)(5) 100 El 20.2203(a)(2)(v)

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

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

E-OTHER El 20.2203(a)(2)(vi) 0 50.73(a)(2)(i)(B) 0 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 (If more space is required, use additional copies of (If more space is required, use additional copies of NRC Form 366A)

V.

ADDITIONAL INFORMATION

A.

Component Identification IEEE 80j IEEE 8' Component MIS Function System Auxiliary Pump Room Watertight Door DR BA Service Water Pump Room Watertight Door DR CC B.

Previous Occurrences

A review of Calvert Cliffs' events over the past several years was performed.

No other previous similar events were identified.

05 ID