05000317/FIN-2016001-01

Finding

Title

Issue of concern Regarding Characterization and Acceptance of a Relevant Indication in Pressurizer to Nozzle Dissimilar Metal Weld

Description

An unresolved item (URI) was identified by the inspectors relating to an issue of concern involving Exelons acceptance and characterization of the relevant indication in weld 4-SR-1006-1 during prior refuel outages. Additional information is required to determine whether a performance deficiency, which is more than minor, exists. Description. Based on a review of Exelon letter dated February 25, 2016, the inspectors preliminarily concluded the relevant indication in weld 4-SR-1006-1 was incorrectly accepted during prior refuel outages and was not in conformance with ASME Code Section XI, Article IWA-3000. Additional inspection, including review of Exelons root cause analysis of this issue, is warranted to determine whether a performance deficiency, which is more than minor, exists related to characterization and acceptance of a relevant indication in weld 4-SR-1006-1. (URI 05000317/2016001-01, Issue of Concern Regarding Characterization and Acceptance of a Relevant Indication in Pressurizer to Nozzle Dissimilar Metal Weld)

01
Site:	Calvert Cliffs
Report	IR 05000317/2016001 Section 1R08
Date counted	Mar 31, 2016 (2016Q1)
Type:	URI:
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.08
Inspectors (proximate)	A Dimitriadis A Rosebrook C Roettgen E Torres H. Anagnostopoulus J Nicholson R Clagg S Barra Dimitriadisa Rosebrook A Siwy C Roettgen H. Anagnostopoulus M Modes R Clagg
Violation of:	Pending
INPO aspect
'
v • d • e

Finding - Calvert Cliffs - IR 05000317/2016001

1(1)2(3)3(1)4(1)5(0)6(0)8(1)201(1)301(1)403(2)405(0)

IR 05000317/2016001: 1

Finding List (Calvert Cliffs) @ 2016Q1

CCA Matrix: 2016Q1

	Q	CCA	Title
05000317/FIN-2015003-01	2015Q3	P.5	Failure to Establish and Maintain Procedures for the Operation of the Diesel Fuel Oil System
05000317/FIN-2015010-01	2015Q4	H.8	Untimely Actions to Test or Inspect DFO Check Valves Relied on for Safety
05000317/FIN-2015007-01	2015Q4		Inadequate Verification of Offsite Power Operability Limit
05000317/FIN-2015007-02	2015Q4		Failure to Verify AC Equipment Operability at Design Loading and Voltage Levels
05000317/FIN-2015004-01	2015Q4	H.5	Failure to Implement Procedures for the Control of Hazard Barriers During Maintenance
05000317/FIN-2015004-02	2015Q4	H.11	AFAS Channel Inoperable due to Valve Misposition
05000317/FIN-2016001-01	2016Q1		Issue of concern Regarding Characterization and Acceptance of a Relevant Indication in Pressurizer to Nozzle Dissimilar Metal Weld

Self-Identified List (Calvert Cliffs)

	Q	Title
05000317/FIN-2015003-02	2015Q3	Licensee-Identified Violation
05000317/FIN-2015003-03	2015Q3	Licensee-Identified Violation
05000317/FIN-2015004-03	2015Q4	Licensee-Identified Violation
05000317/FIN-2015004-04	2015Q4	Licensee-Identified Violation

[Calvert Cliffs Findings full list]

05000317/FIN-2016001-01

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