05000285/FIN-2012009-02

Finding

Title

Impact of Wetting on Safety-Related Cables

Description

During the inspection of Manhole 31, the inspectors determined that the cables were routed in conduit. From discussions with the licensee, Manhole 31 is designed to drain to Manhole 5. The inspectors determined that each cable conduit dipped as it passed through the manhole and determined that any water trapped in the conduit had no way to flow into Manhole 5 as designed. The inspectors determined that when Manhole 5 floods an open path exists for water to travel into the conduit and become trapped in the conduit low spots in Manhole 31. The licensee documented this deficiency in Condition Report 2012-04997. Licensee records indicated that Manhole 5 had filled three times in 14 years (since 1998) since they began to keep records. The inspectors noted that corrective action documents described that the cables could be wet. The inspectors will review the specific qualifications of these cables and confirm whether the cables were qualified to be submerged. In addition, the inspectors determined that the licensee specified they would address water intrusion into the manholes prior to startup from the extended shutdown in response to Notice of Violation 05000285/2011006-02. The inspectors will review corrective actions implemented by the licensee and evaluate the impact on the cables resulting from wetting during the commitment inspection. This is considered an unresolved item.

02
Site:	Fort Calhoun
Report	IR 05000285/2012009 Section 4OA5
Date counted	Jun 30, 2012 (2012Q2)
Type:	URI: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:
Inspectors (proximate)	C Speer G Miller G Pick S Makorg Meyerg Miller G Pick J Melfi J Rivera Ortiz S Makor
INPO aspect
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v • d • e

Finding - Fort Calhoun - IR 05000285/2012009

2(6)3(1)4(4)5(2)7(5)8(0)9(3)10(4)11(5)12(6)301(8)302(0)403(12)404(0)405(0)

IR 05000285/2012009: 1 2 3

Finding List (Fort Calhoun) @ 2012Q2

CCA Matrix: 2012Q2

	Q	CCA	Title
05000285/FIN-2011004-01	2011Q3		Failure to incorporate design information into procedures
05000285/FIN-2011004-02	2011Q3		Failure to provide adequate procedures to ensure leak before break commitment
05000285/FIN-2011004-03	2011Q3		Failure to Identify and Correct the Lack of Calibration for the HE-2 Crane Load Weighing System
05000285/FIN-2011005-01	2011Q4	H.12	Failure to Follow Procedure Results in a Loss of Reactor Coolant
05000285/FIN-2011006-07	2011Q4	P.4	Failure to Follow Housekeeping Program Requirements
05000285/FIN-2011006-06	2011Q4	P.2	Failure to Implement an Adequate Trending Program
05000285/FIN-2011006-05	2011Q4	H.13	Failure to Establish Adequate Measures to Maintain Vendor Manual Design Control Information
05000285/FIN-2011006-04	2011Q4	H.8	Failure to Perform Extent of Condition Evaluation
05000285/FIN-2011006-03	2011Q4	H.6	Failure to Correct Degraded Electrical Insulation on the Component Cooling Water System Motors
05000285/FIN-2011006-02	2011Q4	H.14	Inadequate Corrective Actions to Ensure the Reliability of the RAW Water Pump Power Cables
05000285/FIN-2011006-01	2011Q4	H.13	Failure to Correct Identified Corrective Action Program Deficiencies
05000285/FIN-2011005-04	2011Q4		Inadequate Licensee Procedure for Making Protective Action Recommendations
05000285/FIN-2011005-03	2011Q4	H.2	Failure to Follow Radiation Work Permit Instructions
05000285/FIN-2011005-02	2011Q4	H.12	Inadequate Performance Monitoring Test for Component Cooling Water Heat Exchangers
05000285/FIN-2011406-02	2012Q1	P.3	Security
05000285/FIN-2012002-05	2012Q1	H.2	Failure To Comply With An Emergency Plan Requirement To Notify Offsite Authorities Within 15 Minutes Of An Emergency
05000285/FIN-2012002-01	2012Q1	P.2	Inadequate Procedures to Mitigate a Design Basis Flood
05000285/FIN-2012002-02	2012Q1	P.2	Failure to Classify Intake Structure Sluice Gates as Safety Class III
05000285/FIN-2012002-03	2012Q1	P.2	Failure to Meet Design Basis Requirements for Design Basis Flood Event
05000285/FIN-2011014-02	2012Q1		Failure to Perform Adequate 10 CFR 50.59 Review
05000285/FIN-2011014-03	2012Q1		Cause of Breaker 1B3A Trip Not Identified
05000285/FIN-2011014-01	2012Q1	H.7	Failure to Ensure That the 480 Vac Electrical Power Distribution System Design Requirements Were Implemented and Maintained
05000285/FIN-2011406-01	2012Q1	P.2	Security
05000285/FIN-2012002-04	2012Q1	H.5	Failure to Promptly Recognize and Communicate Siren System Failures
05000285/FIN-2012301-04	2012Q2	P.1	Five Examples of Inadequate Procedures for the Initiating Events Cornerstone
05000285/FIN-2012009-03	2012Q2		Assess Corrective Actions and Determine Structural Effect of Water Intrusion and Boric Acid on Interior Containment Walls
05000285/FIN-2012009-01	2012Q2		Evaluation of Future Discharge Tunnel Inspection Plans
05000285/FIN-2012007-02	2012Q2	H.13	Failure to Maintain Command and Control Function During Fire Fighting Activities in the Protected Area
05000285/FIN-2012007-01	2012Q2		Failure to Provide Adequate Post-Fire Safe Shutdown Actions in the Switchgear Rooms
05000285/FIN-2012301-02	2012Q2		Failure to Periodically Update the Final Safety Analysis Report for the Emergency Diesel Generators
05000285/FIN-2012301-01	2012Q2	P.1	Seven Examples of Inadequate Procedures for the Barrier Integrity Cornerstone
05000285/FIN-2012301-05	2012Q2		Failure to Correctly Translate the Design Basis for the Containment Spray System
05000285/FIN-2012301-03	2012Q2	H.5	Failure to Comply with Technical Specification 2.3(1)(i) for Safety Injection Tank Operability
05000285/FIN-2012009-02	2012Q2		Impact of Wetting on Safety-Related Cables
05000285/FIN-2012007-05	2012Q2	H.13	Untimely Corrective Actions Related to Revising a Post- Fire Safe Shutdown Procedure
05000285/FIN-2012007-04	2012Q2	H.13	Failure to Provide Adequate Alternate Shutdown Capability
05000285/FIN-2012007-03	2012Q2		Alternate Shutdown Procedure Does Not Account for Single Worst Case Spurious Actuations
05000285/FIN-2012003-01	2012Q2	H.2	Failure to Ensure Personnel Meet Minimum Educational Requirements
05000285/FIN-2012301-06	2012Q2	P.1	Four Examples of Inadequate Procedures for the Barrier Integrity Cornerstone

Self-Identified List (Fort Calhoun)

	Q	Title
05000285/FIN-2011004-04	2011Q3	Licensee-Identified Violation
05000285/FIN-2011005-05	2011Q4	Licensee-Identified Violation
05000285/FIN-2012002-06	2012Q1	Licensee-Identified Violation

[Fort Calhoun Findings full list]

05000285/FIN-2012009-02

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