05000285/FIN-2013009-04

Finding

Title

Thermal Aging Embrittlement of CASS Nozzles in the Reactor Coolant System

Description

The team identified that the licensee had not evaluated other cast austinetic stainless steel components (as listed below) in the reactor coolant system for susceptibility to thermal aging embrittlement in accordance with the GALL Report, Revision 0 and the license renewal application. Consequently, the licensee did not include these components in the scope of the flaw tolerance evaluation nor performed any volumetric examination to detect and size cracks. The licensee had replaced two of the nozzles when they replaced their pressurizer in 2006. The affected reactor coolant system nozzles included: RC-PIPE-2501Q-CHARGE-NOZZ, RC-PIPE-2501Q-DRAIN-NOZZ, RC-PIPE-25011-PM-NOZZ, RC-PIPE-2501Q-PMS-NOZZ, RC-PIPE-2501Q-SDC-INLET-NOZZ, RC-PIPE-2501Q-SDC-OUT-NOZZ. The team determined that the licensee documented this deficiency in Condition Report 2013-11991. Follow-up and evaluation of licensee corrective actions to address thermal aging embrittlement of the six cast austinetic stainless steel nozzles in the reactor coolant system as stated in Commitment 34 is an unresolved item.

04
Site:	Fort Calhoun
Report	IR 05000285/2013009 Section 4OA5
Date counted	Sep 30, 2013 (2013Q3)
Type:	URI:
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:
Inspectors (proximate)	G Pick J Dixong Meyerg Miller G Pick J Melfi J Rivera Ortiz S Makor
INPO aspect
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v • d • e

Finding - Fort Calhoun - IR 05000285/2013009

2(0)3(0)4(1)5(5)7(0)8(41)9(5)10(5)11(1)12(11)13(22)14(0)15(0)16(0)17(5)18(7)19(2)403(2)405(10)407(1)501(0)502(0)

IR 05000285/2013009: 1 2 3 4 5

Finding List (Fort Calhoun) @ 2013Q3

CCA Matrix: 2013Q3

	Q	CCA	Title
05000285/FIN-2012012-05	2012Q4		Failure to Perform Siren Maintenance as required by the Alert and Notification System Design Report
05000285/FIN-2012011-01	2012Q4	H.14	Inadequate operability determination for containment internal structures
05000285/FIN-2012011-02	2012Q4	P.5	Failure to Follow Radiation Work Permit Requirements
05000285/FIN-2012011-03	2012Q4	P.2	Failure to Ensure that Adequate Equipment was Available to Measure River Level Locally to be Able to Comply with an Abnormal Operating Procedure
05000285/FIN-2012011-04	2012Q4	H.7	Inadequate Design Basis Documentation
05000285/FIN-2012011-05	2012Q4	H.12	Failure to Properly Scope All the Pertinent External Flood Protection Features into the Walkdown List in Accordance with Industry Guidance NEI 12-07
05000285/FIN-2012012-01	2012Q4		Hot Work Procedures Allowed a Roving Fire Watch
05000285/FIN-2012012-03	2012Q4	P.3	Failure to Properly Manage the Functionality of the River Sluice Gates
05000285/FIN-2012012-04	2012Q4	H.14	Failure to Adequately Implement the Maintenance Rule Program
05000285/FIN-2012403-01	2012Q4	H.14	Security
05000285/FIN-2012403-02	2012Q4	H.5	Security
05000285/FIN-2013011-02	2013Q1	P.2	Two Examples of Failure to Obtain Prior NRC Approval for Flooding Mitigation Strategies
05000285/FIN-2013405-01	2013Q1	H.13	SECURITY - Supplemental Inspection
05000285/FIN-2013405-02	2013Q1	H.13	SECURITY - Supplemental Inspection
05000285/FIN-2013405-03	2013Q1	H.14	SECURITY - Supplemental Inspection
05000285/FIN-2013405-04	2013Q1	H.14	SECURITY - Supplemental Inspection
05000285/FIN-2013405-05	2013Q1	H.7	SECURITY - Supplemental Inspection
05000285/FIN-2013405-06	2013Q1	H.7	SECURITY - Supplemental Inspection
05000285/FIN-2013405-07	2013Q1	H.1	SECURITY - Supplemental Inspection
05000285/FIN-2013405-08	2013Q1	P.2	SECURITY - Supplemental Inspection
05000285/FIN-2013405-09	2013Q1	P.2	SECURITY - Supplemental Inspection
05000285/FIN-2013010-04	2013Q2	P.3	Failure to Perform Extent of Condition Evaluation
05000285/FIN-2013008-39	2013Q2	P.2	Failure to Properly Implement Applicable ASME OM Code Requirements
05000285/FIN-2013012-01	2013Q2		Failure to translate raw water pump anchor bolt specifications into calculations and drawings
05000285/FIN-2013008-40	2013Q2	H.14	Failure to Obtain Prior NRC Approval for a Facility Change
05000285/FIN-2013008-41	2013Q2	P.2	Inappropriate Modification of Turbine Driven Auxiliary Feedwater Pump Back Pressure Protection Trip
05000285/FIN-2013008-42	2013Q2		Failure to Make Timely Event Notifications for Unanalyzed Conditions
05000285/FIN-2013008-43	2013Q2		Repetitive Issues Involving Untimely Submittal of Required Licensee Event Reports
05000285/FIN-2013010-01	2013Q2	H.7	Failure to Establish Main turbine Load Change Procedure
05000285/FIN-2013010-02	2013Q2	P.2	Failure to Correct Multiple Alarm Response Procedures Related to SIT Operation
05000285/FIN-2013010-03	2013Q2	P.2	Failure to Maintain Emergency Operating Procedures
05000285/FIN-2013010-05	2013Q2	H.13	Failure to Follow Work Control Procedures
05000285/FIN-2013407-01	2013Q2		Security
05000285/FIN-2013008-14	2013Q2	H.14	Failure to Promptly Identify and Correct a Condition Adverse to Quality
05000285/FIN-2013012-10	2013Q2		Unverified design for seismic damping values for raw water piping inside the turbine building
05000285/FIN-2013008-01	2013Q2		Inadequate Procedure for Combating Frazil Ice
05000285/FIN-2013008-07	2013Q2		Administrative Controls for a Technical Specification for LOW River Level
05000285/FIN-2013008-22	2013Q2		Fort Calhouns Station\'S Ability to Classify Components as SAFETY-RELATED
05000285/FIN-2013008-23	2013Q2		Code of Record for SAFETY-RELATED Piping Systems
05000285/FIN-2013008-27	2013Q2		Continuous Monitoring Capability of Post Accident Main Steam Radiation Monitor RM-064
05000285/FIN-2013008-29	2013Q2		Use of Alternate Seismic Evaluation Criteria
05000285/FIN-2013005-01	2013Q2	H.2	Failure To Post A High Radiation Area Resulting In A Dose Rate Alarm
05000285/FIN-2013008-12	2013Q2	X.6	Inadequate Root Cause for a Significant Condition Adverse to Quality
05000285/FIN-2013008-10	2013Q2	P.2	Failure to Accurately Model RAW Water Flow Into the Intake Structure
05000285/FIN-2013008-08	2013Q2	P.2	Sluice Gate Leakage Not Periodically Verified
05000285/FIN-2013008-06	2013Q2	P.2	Failure to Account for Worst Case Conditions in Fuel Oil Inventory Calculation
05000285/FIN-2013008-05	2013Q2	P.2	Inadequate Procedure for Combating Loss of RAW Water
05000285/FIN-2013008-04	2013Q2		NON-CONSERVATIVE Value for Declaring an Alert on LOW River Level
05000285/FIN-2013008-03	2013Q2	P.2	Lack of SAFETY-RELATED Equipment for Design Basis LOW River Level
05000285/FIN-2013008-02	2013Q2	P.3	Frazil Ice Monitor Not Operational
... further results

Self-Identified List (Fort Calhoun)

	Q	Title
05000285/FIN-2012012-06	2012Q4	Licensee-Identified Violation
05000285/FIN-2012012-07	2012Q4	Licensee-Identified Violation
05000285/FIN-2013405-10	2013Q1	Licensee-Identified Violation
05000285/FIN-2013005-04	2013Q2	Licensee-Identified Violation
05000285/FIN-2013005-05	2013Q2	Licensee-Identified Violation

[Fort Calhoun Findings full list]

05000285/FIN-2013009-04

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