05000454/FIN-2012002-02

Finding

Title

Potential Under-Torque of Valve 1RC8042B

Description

Following the licensees identification of valve 1RC8042B as a source of unidentified leakage in containment in March 2012, the inspectors selected this valve for a maintenance effectiveness review. The inspectors identified that a work package associated with this valve repair was performed during the previous Unit 1 refueling outage in March 2011. The work package for the repair identified an existing boric acid leak and directed the replacement of the valve bonnet. Therefore, the material condition of 1RC8042B was restored and subsequently degraded in less than 1 year. The licensee entered this issue into their CAP as IR 1339922, Perform Rework Evaluation on 1RC8042B. At the end of the inspection period, the licensee was still in the process of evaluating this issue. This URI will remain open pending the licensees completion of the rework evaluation and the inspectors review and follow up of the evaluation

02
Site:	Byron
Report	IR 05000454/2012002 Section 1R12
Date counted	Mar 31, 2012 (2012Q1)
Type:	URI:
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.12
Inspectors (proximate)	A Garmoe B Bartlett B Jose C Thompson E Duncan E Sanchez Santiago J Cassidy J Dalzell J Robbins R Ngj Tappe Duncan J Gilliam C Crisden M Learn L Rodriguez R Jickling R Langstaff C Thompson B Bartlett J Robbins K Walton
INPO aspect
'
v • d • e

Finding - Byron - IR 05000454/2012002

12(1)12(0)12(1)402(0)12(1)12(0)12(1)12(1)12(1)1(0)2(5)3(3)4(0)5(4)7(5)8(0)9(0)12(1)301(0)402(0)403(0)501(0)8(0)12(1)1(0)18(0)

IR 05000454/2012002: 1 2 3 4 5

Finding List (Byron) @ 2012Q1

CCA Matrix: 2012Q1

	Q	CCA	Title
05000455/FIN-2011016-01	2011Q3	P.6	Inadequate Extent of Cause for 2A EDG Lube Oil Leak
05000454/FIN-2011004-02	2011Q3		Modification of the Auxiliary Feedwater System Without Prior NRC Approval
05000454/FIN-2011004-01	2011Q3	H.5	Failure to Identify Elevated Risk Status
05000454/FIN-2011004-03	2011Q3	P.5	Modification of the Auxiliary Feedwater System
05000454/FIN-2011004-04	2011Q3		Design of Auxiliary Feedwater System Included Voids in Safety-Related Alternate Suction Flow Paths
05000454/FIN-2011008-01	2011Q3	H.2(a) H.6	Untimely Corrective Action for Previously Identified Non-Cited Violations
05000454/FIN-2011008-02	2011Q3	P.5 P.2(a)	Failure to Initiate Issue Reports
05000454/FIN-2011005-01	2011Q4	H.7	Failure to Identify Voided Sections of Af Piping
05000454/FIN-2011005-02	2011Q4	P.2	High Energy Line Break Operability Evaluation
05000454/FIN-2011005-04	2011Q4	H.4 H.5	Failure to Identify Hazardous Materials on Transportation Manifest
05000454/FIN-2011005-03	2011Q4		Use of Tlds May Not Be Consistent with the Methods Used by the NVLAP Accreditation Process
05000454/FIN-2012002-01	2012Q1	P.1	Structural Steel Beam Missing Fireproofing Material
05000454/FIN-2012002-04	2012Q1	H.7	Incomplete CC System and SX System Code Examinations
05000454/FIN-2012002-05	2012Q1	H.5	Failure to Control the Operating Status of Eight New Valves Affecting Two Safety-Related Systems
05000454/FIN-2012002-03	2012Q1		Boric Acid Accumulation Identified in Leakage Detection Trough
05000454/FIN-2012002-02	2012Q1		Potential Under-Torque of Valve 1RC8042B

Self-Identified List (Byron)

	Q	Title
05000454/FIN-2011005-05	2011Q4	Licensee-Identified Violation

[Byron Findings full list]

05000454/FIN-2012002-02

Navigation menu

Search