05000318/LER-2005-001, Regarding Ultrasonic Testing Identifies Two Alloy 600 Nozzles Requiring Repair

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Regarding Ultrasonic Testing Identifies Two Alloy 600 Nozzles Requiring Repair
ML051180015
Person / Time
Site: Calvert Cliffs Constellation icon.png
Issue date: 04/21/2005
From: Holm D
Constellation Energy Group
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
LER 05-001-00
Download: ML051180015 (5)


LER-2005-001, Regarding Ultrasonic Testing Identifies Two Alloy 600 Nozzles Requiring Repair
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
3182005001R00 - NRC Website

text

Calvert Cliffs Nuclear Power Plant Constellation Generation Group, LLC 1650 Calvert Cliffs Parkway Lusby, Maryland 20657 Constellation Energy Group April 21, 2005 U.S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION:

SUBJECT:

Document Control Desk Calvert Cliffs Nuclear Power Plant Unit No. 2; Docket No. 50-318; License No. DPR 69 Licensee Event Report 2005-001 Ultrasonic Testing Identifies Two Alloy 600 Nozzles Requiring Repair The attached report is being sent to you as required by 10 CFR 50.73. Should you have questions regarding this report, we will be pleased to discuss them with you.

Very truly yours, David A. Holm Plant General Manager DAH/JTJ/bjd

Attachment:

As stated cc:

R. V. Guzman, NRC S. J. Collins, NRC Resident Inspector, NRC R. I. McLean, DNR

 -' 2 -2, -

A NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 06130/2007

, the NRC may digits/characters for each block) not conduct or sponsor, and a person Is not required to respond to, the digits/characters________for

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3. PAGE Calvert Cliffs Nuclear Power Plant, Unit 2 05000 318 1 OF 004
4. TITLE Ultrasonic Testing Identifies Two Alloy 600 Nozzles Requiring Repair
5. EVENT DATE
6. LER NUMBER
7. REPORT DATE
8. OTHER FACILITIES INVOLVED SEUNILRVFACILITY NAME DOCKET NUMBER MONTH DAY YEAR YEAR NSEUENTIAL REV MONTH DAY YEAR 05000 FACILITY NAME DOCKET NUMBER 02 26 2005 2005 - 001 -

00 04 21 2005 05000

9. OPERATING MODE II. THIS REPORT IS SUBMITIED PURSUANT TO THE REQUIREMENTS OF 10 CFR§: (Check all that apply) o 20.2201(b) 0 20.2203(a)(3)(i)

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

El 50.73(a)(2)(vii) 5 0 20.2201(d) 0 20.2203(a)(3)(ii)

E 50.73(a)(2)(ii)(A)

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

O 20.2203(a)(1)

El 20.2203(a)(4) al 50.73(a)(2)(ii)(B) 0 50.73(a)(2)(viii)(B) 0o 20.2203(a)(2)(i)

El 50.36(c)(1)(i)(A)

[1 50.73(a)(2)(iii) 0 50.73(a)(2)(ix)(A)

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

D 50.36(c)(1)(ii)(A)

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

E 50.73(a)(2)(x) o 20.2203(a)(2)(iii)

E 50.36(c)(2)

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

El 50.46(a)(3)(ii) 0 50.73(a)(2)(v)(B)

El 73.71(a)(5) 000 0 20.2203(a)(2)(v) 0 50.73(a)(2)(i)(A)

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

Cl OTHER O 20.2203(a)(2)(vi)

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

El 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 Fonm 366A)

V.

ADDITIONAL INFORMATION

A.

Component Identification IEEE 803 EIIS Function Component IEEE 805 System ID AB RCS Nozzle NZL B.

Previous Occurrences

No other previous similar events have occurred within the past three years.