05000321/FIN-2012005-04

Finding

Title

Licensee-Identified Violation

Description

A licensee-identified violation of Hatch Unit 1 TS 3.4.4, Reactor Coolant System Operational Leakage, was discovered on March 13, 2012, during the performance of a reactor pressure vessel pressure test. TS 3.4.4 requires, in part, that reactor coolant system operational leakage shall be limited to no pressure boundary leakage in Modes 1, 2, and 3. Contrary to this requirement a through-wall leak was identified in a small bore line located upstream of a high pressure coolant injection isolation valve resulting in pressure boundary leakage during Modes 1, 2, and 3. The inspectors utilized IMC 0609 Appendix A, Exhibit 1, Initiating Events Screening Questions, dated July 1, 2012, and determined this violation screened as Green because the through-wall leak did not result in exceeding the reactor coolant system leak rate for a small loss of coolant accident, and did not adversely affect other systems used to mitigate a loss of coolant accident. The licensee entered this violation into their corrective action program as CR 423179.

04
Site:	Hatch
Report	IR 05000321/2012005 Section 4OA7
Date counted	Dec 31, 2012 (2012Q4)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	Licensee-identified
Inspection Procedure:
Inspectors (proximate)	D Berkshire F Ehrhardt W Loo J Laughlin M Miller M Speck B Caballero S Sandal E Morris D Hardage M Schwieg
INPO aspect
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v • d • e

Finding - Hatch - IR 05000321/2012005

1(0)2(4)3(5)4(5)5(5)6(0)7(0)8(5)201(0)301(0)403(1)404(0)404(1)11(0)

IR 05000321/2012005: 1 2 3 4 5

Finding List (Hatch) @ 2012Q4

CCA Matrix: 2012Q4

	Q	CCA	Title
05000321/FIN-2012002-02	2012Q1		Failure to Perform an Adequate Design Modification for Replacement of the TSC Air Conditioning Unit
05000321/FIN-2012002-01	2012Q1	H.14	Failure to Assess and Manage the Increase in Risk When Removing Residual Heat Removal and Core Spray from Service
05000321/FIN-2012403-01	2012Q1	H.12	Security
05000321/FIN-2012003-01	2012Q2	H.7	Removal of scaffolding built to allow implementation of Unit 1 manual operation of the containment hardened vent.
05000321/FIN-2012003-02	2012Q2		Mispositioning and subsequent failure of Hatch Unit 1 reactor control rod blade
05000321/FIN-2012003-03	2012Q2	P.3	Inadequate Surveillance Procedures for Evaluating Accumulated Gas in the HPCI and RCIC System
05000321/FIN-2012004-04	2012Q3	H.12	Failure to follow clearance procedures for returning the A main control room air conditioning unit to service following maintenance
05000321/FIN-2012008-05	2012Q3		Failure to Provide Appropriate Acceptance Criteria for EDG Air-Start System Check Valves
05000321/FIN-2012008-04	2012Q3		Failure to Incorporate Appropriate Test Acceptance Criteria to Assure Satisfactory Steady State EDG Performance
05000321/FIN-2012008-03	2012Q3		Failure to Ensure Adequacy of Intake Structure Ventilation Design
05000321/FIN-2012008-02	2012Q3	H.7	Failure to Adequately Account for Potential Pump Discharge Check Valve Back-leakage
05000321/FIN-2012004-03	2012Q3	P.5	Failure to establish adequate preventative maintenance for the safety related main control room air conditioning units
05000321/FIN-2012004-02	2012Q3	H.9	Licensed Operator Requalification Annual Operating Test Administration Issues
05000321/FIN-2012004-01	2012Q3	H.8	Failure to follow transient combustible control requirements within the sites intake structure.
05000321/FIN-2012008-01	2012Q3		Failure to Report a Degraded Primary Safety Barrier per 10 CFR 50.72(b)(3)(ii)(A)
05000321/FIN-2012005-03	2012Q4	H.7	Installation of a transformer for the TSC cooling coil and condensing unit control circuit not adequately designed to provide full system load
05000321/FIN-2012005-01	2012Q4		Low Voltage Safety-related Cables Subjected to Water Submersion
05000321/FIN-2012005-02	2012Q4		Failure to Report a Degraded Primary Safety Barrier in accordance with 10 CFR 50.72 and 10 CFR 50.73

Self-Identified List (Hatch)

	Q	Title
05000321/FIN-2012002-03	2012Q1	Licensee-Identified Violation
05000321/FIN-2012002-04	2012Q1	Licensee-Identified Violation
05000321/FIN-2012003-04	2012Q2	Licensee-Identified Violation
05000321/FIN-2012003-05	2012Q2	Licensee-Identified Violation
05000321/FIN-2012004-05	2012Q3	Licensee-Identified Violation
05000321/FIN-2012005-04	2012Q4	Licensee-Identified Violation
05000321/FIN-2012005-05	2012Q4	Licensee-Identified Violation

[Hatch Findings full list]

05000321/FIN-2012005-04

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