05000454/FIN-2011003-02

Finding

Title

Licensee-Identified Violation

Description

The following violation of very low safety significance (Green) was identified by the licensee and is a violation of NRC requirements, which meets the criteria ofSection2.3.2of the NRC Enforcement Policy, NUREG-1600,for being dispositioned as a non-cited violation. License Condition 2.C.(1)stated, in part, that the licensee is authorized to operate both units at reactor core power levels not to exceed 3586.6 megawatts thermal. Contrary to this, both units exceeded their license thermal power limits since original construction by approximately 0.5 percent. The licensee identified that the flow coefficient utilized in the reactor power calorimetric calculation was not conservative during a post-maintenance calibration of a new flow instrument. The finding was determined to have very low safety significance because it only involved the potential to affect the fuel barrier. The licensee entered this issue into the CAP asIR1217236 and implemented the correct flow coefficients

02
Site:	Byron
Report	IR 05000454/2011003 Section 4OA7
Date counted	Jun 30, 2011 (2011Q2)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	Licensee-identified
Inspection Procedure:
Inspectors (proximate)	C Thompson B Bartlett J Robbins J Neurauter V Meghani E Duncan A Shaikh N Feliz-Adorno
INPO aspect
'
v • d • e

Finding - Byron - IR 05000454/2011003

2(8)3(2)4(5)5(5)6(0)7(0)8(2)9(3)10(1)11(0)12(0)13(2)14(0)15(6)16(0)403(0)404(1)405(0)501(0)502(0)11(1)12(0)16(1)30(0)

IR 05000454/2011003: 1 2

Finding List (Byron) @ 2011Q2

CCA Matrix: 2011Q2

	Q	CCA	Title
05000454/FIN-2010007-03	2010Q3		Licensee ISFSI Annulus Cooling System Important to Safety Classification
05000454/FIN-2010007-01	2010Q3		Inadequate Procedures for Implementing FSAR Required Annulus Cooling
05000454/FIN-2010004-02	2010Q3		Relying on the Use of Friction as a Restraining Force when the HI-TRAC is Placed on top of the HI-STORM
05000454/FIN-2010004-01	2010Q3	H.7	Failure to Perform Adequate Evaluation for Crane Upgrade
05000454/FIN-2010007-02	2010Q3		Non-Inert Atmosphere May Challenge Fuel Integrity
05000454/FIN-2010007-04	2010Q3		Thermal Models in FSAR Design Basis Analysis May Not be Conservative
05000454/FIN-2010005-02	2010Q4		Inadequate Procedures for Implementing FSAR Required Annulus Cooling
05000454/FIN-2010005-03	2010Q4		Inadequate Procedural Guidance for Heavy Loads Operations
05000454/FIN-2010005-01	2010Q4		Inadequate Instructions for the Inspection of the River Screen House and Essential Service Water Cooling Tower
05000454/FIN-2010006-01	2010Q4		Manual Actions Not Explicitly Approved
05000454/FIN-2010006-02	2010Q4		Failure to Provide Adequate Guidance in Safe-Shutdown Procedures
05000454/FIN-2010006-03	2010Q4		Failure to Periodically Test 125 Vdc Molded Case Circuit Breakers
05000454/FIN-2011002-03	2011Q1	H.7	Out of Date/Expired Respirator Cartridges
05000454/FIN-2011002-05	2011Q1	P.5	Failure to Evaluate the Effects of Dynamic Loads at the CS Discharge Piping
05000454/FIN-2011002-04	2011Q1		Inadequate Instructions for Measuring ECCS Voids
05000454/FIN-2011002-02	2011Q1	H.7	Self-Revealed Low Flow to Reactor Containment Fan Cooler
05000454/FIN-2011002-01	2011Q1		Auxiliary Feedwater Pump Heat Exchanger Configured Incorrectly
05000455/FIN-2011011-01	2011Q1	H.12	Self-Revealing Failure of the 2A Diesel Generator Upper Lube Oil Cooler
05000454/FIN-2011015-01	2011Q2		Design of Auxiliary Feedwater System Included Voids in Safety-Related Alternate Suction Flowpaths
05000454/FIN-2011013-02	2011Q2		Concerns with Licensees Margin to Overfill Analysis Related to Steam Generator Tube Rupture Event
05000454/FIN-2011015-02	2011Q2	H.14	Failure to Adequately Document and Justify Continued Operability of the Auxiliary Feedwater System
05000454/FIN-2011404-01	2011Q2	H.1	Security
05000454/FIN-2011009-03	2011Q2	P.2	EDG Usable Fuel Calculations Failed to Consider Appropriate EDG Frequency Variations
05000454/FIN-2011009-02	2011Q2	H.13	Failure to Follow Procedure Requirements for Temporary Scaffolds that Remain in Place for Over 90 Days
05000454/FIN-2011009-01	2011Q2	H.13	Failure to Specify and Perform Required Independent Quality Verification Hold Point Inspections
05000454/FIN-2011003-01	2011Q2		Failure to Ensure that the Design of the AF Suction Piping was Adequate to Prevent Air Entrainment Following a Seismic of Tornado Event
05000454/FIN-2010502-02	2011Q2		Changes to EAL Basis Decreased the Effectiveness of the Plan without Prior NRC Approval
05000454/FIN-2011013-01	2011Q2		Restoring Compliance With Respect to Single Failures
05000454/FIN-2010502-01	2011Q2		(Traditional Enforcement) Changes to EAL Basis Decreased the Effectiveness of the Plan without Prior NRC Approval

Self-Identified List (Byron)

	Q	Title
05000454/FIN-2010004-03	2010Q3	Licensee-Identified Violation
05000454/FIN-2010004-04	2010Q3	Licensee-Identified Violation
05000454/FIN-2010006-04	2010Q4	Licensee-Identified Violation
05000454/FIN-2010405-01	2010Q4	Security
05000454/FIN-2010406-01	2010Q4	Security
05000454/FIN-2011002-06	2011Q1	Licensee-Identified Violation
05000454/FIN-2011002-07	2011Q1	Licensee-Identified Violation
05000454/FIN-2011003-02	2011Q2	Licensee-Identified Violation

[Byron Findings full list]

05000454/FIN-2011003-02

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