05000317/FIN-2008002-01

Finding

Title

Unit 1 Reactor Coolant System Pressurizer Pressure Boundary Leakage

Description

The inspectors determined that additional inspection was required for the inactive leak on the heater sleeve penetration in the pressurizer bottom head. Technical Specifications 3.4.13 RCS Operational Leakage, states that RCS operational leakage shall be limited to no pressure boundary leakage in Modes 1 through 4. Contrary to this requirement, on February 25, 2008, Constellation identified RCS deposits indicated that the sleeve welds had been leaking during the previous operating cycle. The penetration sleeves are part of the RCS pressure boundary. The leak was discovered during scheduled visual examination of the pressurizer head penetration area. Constellation entered this issue into their CAP (CR IRE-029-507) to complete a cause analysis and reportability review. An unresolved item (URI) has been opened to track this issue pending review of Constellations evaluation to determine if a performance deficiency exists. (URI 05000317/2008002-01. Unit 1 Reactor Coolant System Pressurizer Pressure Boundary Leakage)

01
Site:	Calvert Cliffs
Report	IR 05000317/2008002 Section 1R08
Date counted	Mar 31, 2008 (2008Q1)
Type:	URI:
cornerstone	No Cornerstone
Identified by:	NRC identified
Inspection Procedure:	IP 71111.08
Inspectors (proximate)	T Burns S Kennedy R Rolph M Davis J Kulp G Dentelm Davisj Schoppy A Rosebrook G Dentel S Kennedy R Rolph
INPO aspect
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v • d • e

Finding - Calvert Cliffs - IR 05000317/2008002

1(0)2(4)3(4)4(2)5(2)6(0)7(1)9(1)301(0)302(0)402(0)502(3)

IR 05000317/2008002: 1 2 3 4

Finding List (Calvert Cliffs) @ 2008Q1

CCA Matrix: 2008Q1

	Q	CCA	Title
05000317/FIN-2007004-04	2007Q3		Unit 2 Pressurizer Safety Valve LOW Lift Setting
05000317/FIN-2007005-01	2007Q4		Timely NRC Notification of SRO License Restriction
05000317/FIN-2008007-01	2008Q1		Failure to Promptly Report a Senior Licensed Operator Permanent Disability
05000317/FIN-2008002-01	2008Q1		Unit 1 Reactor Coolant System Pressurizer Pressure Boundary Leakage
05000317/FIN-2008002-02	2008Q1	H.5	Inadequate Risk Assessment Associated with the 2A Emergency Diesel Generator
05000317/FIN-2008002-03	2008Q1	H.8	DID Not Implement Scaffolding Procedure Requirement
05000317/FIN-2008002-04	2008Q1	H.7	Inadequate Procedures for Draining and Venting the Reactor Coolant System

Self-Identified List (Calvert Cliffs)

[Calvert Cliffs Findings full list]

05000317/FIN-2008002-01

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