05000341/FIN-2016004-02

Finding

Title

Failure to Correctly Interpret and Implement TS Requirements for LOP Instrumentation and AC Electrical Power Functions

Description

The inspectors identified a finding of very low safety significance with an associated NCV of TS 3.3.8.1, Loss of Power (LOP) Instrumentation, and TS 3.8.1, AC [Alternating Current] Sources Operating. The licensee failed to satisfy applicable action requirements for inoperable loss of voltage and degraded voltage instrument channels, inoperable EDGs, and an inoperable offsite power circuit when power was lost to the station transformer 64 auto voltage tap changer and one-half of the instrument channels for engineered safety features bus 64C due to failure of line side potential transformer fuses on April 24, 2016. The licensee entered this performance deficiency into its CAP as CARDs 16-23392, 16-25194 and 16-28120. As an immediate corrective actions the licensee established an expectation to enter Limiting Condition for Operation (LCO) 3.3.8.1 when any of the LOP instrumentation channels are tripped. Other corrective actions included additional training for licensed operators. This performance deficiency was of more than minor safety significance because a failure to correctly implement TS LCO requirements has the potential to lead to a more significant safety concern if left uncorrected. Specifically, a failure to declare an LCO not met, enter the applicable condition(s), and follow the applicable actions could reasonably result in operations outside of established safety margins or analyses. The finding was determined to be of very low safety significance during a detailed Significance Determination Process review since the delta core damage frequency (CDF) was determined to be less than 1.0E-6/year. The inspectors concluded this finding affected the cross-cutting area of human performance and the cross-cutting aspect of training. Specifically, licensed operators failed to correctly apply the TS LCO requirements for inoperable LOP instrument channels and inoperable AC power sources due to lack of knowledge and unfamiliarity with the equipment conditions they faced during the event [IMC 0310, H.9].

02
Site:	Fermi
Report	IR 05000341/2016004 Section 1R15
Date counted	Dec 31, 2016 (2016Q4)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.15
Inspectors (proximate)	B Kemker G Hansen I Hafeez K Pusateri K Riemer M Beilby T Briley V Myers
Violation of:	Technical Specification
CCA	H.9, Training
INPO aspect	CL.4
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v • d • e

Finding - Fermi - IR 05000341/2016004

8(0)1(12)2(7)3(3)4(6)5(0)6(0)7(16)201(1)403(0)404(0)405(0)406(1)502(0)

IR 05000341/2016004: 1 2 3 4 5 6

Finding List (Fermi) @ 2016Q4

CCA Matrix: 2016Q4

	Q	CCA	Title
05000341/FIN-2016001-10	2016Q1		Failure to Satisfy 10 CFR 50.72 and 10 CFR 50.73 Reporting Requirements for Primary Containment Isolation Valve Actuations
05000341/FIN-2016001-05	2016Q1		Failure to Satisfy 10 CFR 50.73 Reporting Requirements for a Condition Prohibited by the Plants Technical Specifications
05000341/FIN-2016001-03	2016Q1		Failure to Satisfy 10 CFR 50.72 and 10 CFR 50.73 Reporting Requirements for Loss of RPS Trip Safety Functions
05000341/FIN-2016001-04	2016Q1	P.4	Failure to Incorporate Operating Experience into Preventive Maintenance Activities Associated with the TBCCW System
05000341/FIN-2016001-09	2016Q1	H.1	Inadvertent Reactor Water Low Level Reactor Protection System Actuation Due to Operator Error
05000341/FIN-2016001-08	2016Q1		Failure to Follow Apparent Cause Evaluation Procedure
05000341/FIN-2016001-07	2016Q1		Inadequate Test Criteria in SGTS Flow/Heater Operability Surveillance Test
05000341/FIN-2016001-06	2016Q1		Failure to Translate Design Requirements of the RHRHVAC System into Procedures
05000341/FIN-2016001-02	2016Q1	H.14	Failure to Correctly Interpret and Implement TS Requirements for RPS Trip Functions
05000341/FIN-2016001-01	2016Q1		Failure of the Plant-Referenced Simulator to Demonstrate Expected Plant Response for Safety Relief Valves
05000341/FIN-2016002-02	2016Q2		Inadequate Test Procedure Used for Measuring and Determining Average Silt Levels in the Service Water Reservoir
05000341/FIN-2016406-01	2016Q2	H.13	Security
05000341/FIN-2016002-01	2016Q2	H.12	Failure to Control Combustible Materials
05000341/FIN-2016002-03	2016Q2	H.9	Loss of Power Instrumentation TS 3.3.8.1 Applicability Following Bus 64C Potential Transformer Fuse Failures
05000341/FIN-2016201-01	2016Q2		Security
05000341/FIN-2016002-04	2016Q2	P.2	Failure to Control the Work Hours of Covered Workers
05000341/FIN-2016002-05	2016Q2		Failure to Use Correct Material in a Feedwater Heater Level Control Valve Resulted in a Loss of Feedwater Heater Drains and a Reactor Recirculation System Runback
05000341/FIN-2016002-06	2016Q2		Failure to Implement Adequate Preventive Maintenance on Spare Terminals in Safety-Related Motor Control Centers
05000341/FIN-2016007-03	2016Q3	H.4	Failure to Verify the Ability to Manually Throttle Safety-Related MOVs during a DBA
05000341/FIN-2016007-02	2016Q3	P.6	Failure to Verify the Adequacy of the Voltage Supplied to Transformer #64 Load Tap Changer
05000341/FIN-2016007-07	2016Q3	P.6	Failure to Ensure that Protective Devices for the Loads Required at the Beginning of a LOCA Would Not Trip Under Degraded Voltage Conditions
05000341/FIN-2016007-13	2016Q3	P.2	Failure to Identify a CAQ Associated with Over-Dutied 480V Safety-Related Switchgear Breakers
05000341/FIN-2016003-01	2016Q3	P.2	Failure to Perform an Operability Determination for Division 1 RPV Reference Leg Backfill System Not Providing Adequate Flow
05000341/FIN-2016003-02	2016Q3		Fluctuating Background Effect on Accident Range Noble Gas Monitor
05000341/FIN-2016007-11	2016Q3	H.6	Failure to Apply Design Control Measures to a Design Change Associated with NIAS Accumulator Capability
05000341/FIN-2016007-01	2016Q3		Inadequate Procedure for Addressing Non-Functional MDCT Fan Motor Brake System
05000341/FIN-2016007-04	2016Q3		Failure to Periodically Test the EDG Capability to Start and Accelerate All of the Sequenced Loads Within the Applicable Limits
05000341/FIN-2016007-05	2016Q3		Failure to Leak Test All Division 2 NIAS Boundary Isolation Valves
05000341/FIN-2016007-06	2016Q3		Failure to Ensure that the MSIVs Would Close Within the TS Required Timeframe and as Described in the UFSAR
05000341/FIN-2016007-08	2016Q3		Inadequate Containment Debris Inspections Acceptance Criteria
05000341/FIN-2016007-09	2016Q3		Failure to Evaluate the Acceptability of Drywell Coatings with Respect to Potential ECCS Suction Strainer Blockage
05000341/FIN-2016007-10	2016Q3		Non Conservative ECCS Suction Strainer Min-K Combined Generation and Transport Factors
05000341/FIN-2016007-12	2016Q3	H.4	Failure to Identify an Out-of-Specification Pressure Reading on the Nitrogen Supply to the A MDCT Fan Motor Brake System
05000341/FIN-2016007-14	2016Q3		Failure to Identify that an Inadequate Minimum MSIV Accumulator Air Pressure Setpoint Was CAQ
05000341/FIN-2016007-15	2016Q3	H.14	Failure to Identify that a Non-Conservative Min-K Insulation Volume Calculation Error Was Nonconforming to the ECCS Suction Strainer Licensing Basis
05000341/FIN-2016007-16	2016Q3	H.13	Failure to Timely Identify, Document, and Evaluate Conditions that Challenge Operability
05000341/FIN-2016003-03	2016Q3	H.8	Failure to Follow Procedures During Concrete Placement of Flexible Storage Facility Buildings
05000341/FIN-2016004-05	2016Q4	H.12	Failure to Lock an Area Meeting Locked High Radiation Area Conditions
05000341/FIN-2016004-01	2016Q4		Inadequate Work Instructions for Maintenance on Flexible Couplings for EDGs
05000341/FIN-2016004-02	2016Q4	H.9	Failure to Correctly Interpret and Implement TS Requirements for LOP Instrumentation and AC Electrical Power Functions
05000341/FIN-2016004-03	2016Q4		Failure to Satisfy 10 CFR 50.73 Reporting Requirements for Loss of LOP Instrumentation and AC Electrical Power Safety Functions
05000341/FIN-2016004-04	2016Q4		Inadequate Testing of SGTS Filters

Self-Identified List (Fermi)

	Q	Title
05000341/FIN-2016001-11	2016Q1	Licensee-Identified Violation
05000341/FIN-2016001-12	2016Q1	Licensee-Identified Violation
05000341/FIN-2016002-07	2016Q2	Licensee-Identified Violation
05000341/FIN-2016004-06	2016Q4	Licensee-Identified Violation

[Fermi Findings full list]

05000341/FIN-2016004-02

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