05000237/FIN-2011008-02

Finding

Title

Failure to Identify Diesel Fire Pump Battery Terminal Corrosion

Description

The inspectors identified a finding of very low safety significance (Green) and associated NCV of Technical Specifications for the licensees failure to implement the diesel fire pump battery surveillance procedure. Specifically, the licensee failed to identify corrosion on the diesel fire pump battery terminals, which was contrary to the surveillance procedure that implemented the fire protection program. The licensee entered the issue into their corrective action program and surface cleaned the terminals. The inspectors determined that the finding was more than minor because, if left uncorrected, the presence of corrosion in conjunction with identified voltage issues for two battery cells could affect the reliability of the diesel fire pump. This finding was of very low safety significance because the diesel fire pump had started as part of a recent routine surveillance. This finding has a cross-cutting aspect in the area of Human Performance because the maintenance personnel who performed the battery surveillance did not have sufficient training to recognize the presence of corrosion.

02
Site:	Dresden
Report	IR 05000237/2011008 Section 1R05
Date counted	Dec 31, 2011 (2011Q4)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.05
Inspectors (proximate)	Z Falevits R Daley R Langstaff R Winter J Bowen S Belding
CCA	H.9, Training
INPO aspect	CL.4
'
v • d • e

Finding - Dresden - IR 05000237/2011008

1(0)2(7)3(9)4(5)5(3)6(0)7(0)8(8)9(0)301(0)403(2)404(0)405(0)406(0)501(0)502(0)22(0)

IR 05000237/2011008: 1 2 3 4 5 6 7 1

Finding List (Dresden) @ 2011Q4

CCA Matrix: 2011Q4

	Q	CCA	Title
05000237/FIN-2011403-01	2011Q1	H.2	Security
05000237/FIN-2011002-02	2011Q1	H.5	Control Room Ventilation Smoke Detector Failure to Perform Post-Maintenance Testing
05000237/FIN-2011002-04	2011Q1	H.5	Failure to Perform Surveillance Testing on East Turbine Building Vent HVAC Smoke Detectors
05000237/FIN-2011002-05	2011Q1		Undocumented Technical Basis for Change to EOP ATWS Mitigation Strategy
05000237/FIN-2011002-06	2011Q1	H.2	Failure to Follow TS 5.5.2 Implementing Procedures
05000237/FIN-2011002-07	2011Q1	H.11 H.12	Dresden 3B Circulating Water Pump Bearing Failure Due to Low Oil Level
05000237/FIN-2011002-03	2011Q1		Adequacy of Control Room Ventilation Smoke Purge Function
05000237/FIN-2011002-01	2011Q1		Satisfactory Performance of a Surveillance Test Procedure That Was Later Demonstrated to be Not Capable of Being Performed
05000237/FIN-2011003-04	2011Q2		Inadequate Instructions for Coping with a Dresden Lock and Dam Failure
05000237/FIN-2011003-06	2011Q2		Concerns with the Licensing and Design Basis
05000237/FIN-2011003-01	2011Q2		Failure to Include Adequate Acceptance Criteria in a Surveillance Test
05000237/FIN-2010502-01	2011Q2		(Traditional Enforcement) Changes to EAL Basis Decreased the Effectiveness of the Plan without Prior NRC Approval
05000237/FIN-2011003-08	2011Q2	P.2	Failure to Place One Channel of the Rod Block Monitor Into Trip
05000237/FIN-2011003-07	2011Q2	H.12	Change In Unit 2 Reactor Water Level Due To A Failure To Follow Procedure
05000237/FIN-2011003-05	2011Q2		Inadequate Scoping of a Non-Safety-related Pump Into Maintenance Rule
05000237/FIN-2011003-03	2011Q2		Inadequate Acceptance Criteria for Testing Equipment Relied Upon to Mitigate the Consequences of a Lock and Dam Failure
05000237/FIN-2011003-02	2011Q2		Inadequate Instructions for the Inspection of Safety-Related Portions of the Intake Structure
05000237/FIN-2010502-02	2011Q2		Changes to EAL Basis Decreased the Effectiveness of the Plan without Prior NRC Approval
05000237/FIN-2011004-04	2011Q3		Inadequate Preventive Maintenance Procedure For Valve 2-2301-29
05000237/FIN-2011004-01	2011Q3		Classification of the Emergency Diesel-Driven Flood Pump to Required Quality Standards
05000237/FIN-2011004-05	2011Q3		Alert Declared Due to Chemical Spill
05000237/FIN-2011004-03	2011Q3		Inadequate Relay Preventative Maintenance
05000237/FIN-2011004-02	2011Q3		Improperly Classifying the Unit 2 and 3 Containment Cooling Service Water (CCSW) Pump Vault Drain Check-Valves as Non-Safety-Related
05000237/FIN-2011008-03	2011Q4		Failure to Ensure Operators Required for Safe Shutdown Were On-Site
05000237/FIN-2011008-06	2011Q4		Failure to Obtain NRC Approval for Change Adverse to Safe Shutdown
05000237/FIN-2011008-02	2011Q4	H.9	Failure to Identify Diesel Fire Pump Battery Terminal Corrosion
05000237/FIN-2011008-04	2011Q4		Safe Shutdown Procedure Implementation
05000237/FIN-2011008-01	2011Q4	H.10	Failure to Implement Transient Combustible Program
05000237/FIN-2011005-02	2011Q4	H.2	Control Rod Blade Disengages from Lifting Tool and Drops Over Reactor Core into an Empty Cell
05000237/FIN-2011005-01	2011Q4	H.12	Bus 23 Pot Fuse Drawer Resulting in the Inoperability of the Control Room Emergency Ventilation Air Condition System
05000237/FIN-2011005-03	2011Q4		Unplanned Unit 2 Secondary Containment TS Entry
05000237/FIN-2011008-05	2011Q4		Failure to Obtain NRC Approval for Change Adverse to Safe Shutdown

Self-Identified List (Dresden)

	Q	Title
05000237/FIN-2011403-02	2011Q1	Security
05000237/FIN-2011003-09	2011Q2	Licensee-Identified Violation
05000237/FIN-2011008-07	2011Q4	Licensee-Identified Violation

[Dresden Findings full list]

05000237/FIN-2011008-02

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