05000321/FIN-2010003-06

Finding

Title

Licensee-Identified Violation

Description

TS 3.4.3 requires 10 of 11 SRVs to be operable during Modes 1, 2 and 3. Contrary to the above, on March 11, 2010 on Unit 1 it was identified during bench testing that five safety relief valves failed to lift at the required TS setpoint. The cause was found to be corrosion induced bonding between the pilot disc and seating surface. This condition was documented in CR 2010103338. This finding is of very low safety significance because a previous evaluation performed by the licensee bounds this condition and RCS pressure would be maintained below the TS safety limit.

06
Site:	Hatch
Report	IR 05000321/2010003 Section 4OA7
Date counted	Jun 30, 2010 (2010Q2)
Type:	NCV: Green
cornerstone	Barrier Integrity
Identified by:	Licensee-identified
Inspection Procedure:
Inspectors (proximate)	S Shaeffer A Nielsen S Walker T Steadham R Lewis E Morris P Niebaum R Williams D Hardage J Dymek
INPO aspect
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v • d • e

Finding - Hatch - IR 05000321/2010003

2(2)3(6)4(10)5(2)7(0)9(3)201(1)202(2)403(0)503(0)6(0)

IR 05000321/2010003: 1 2 3 4 5 6

Finding List (Hatch) @ 2010Q2

CCA Matrix: 2010Q2

	Q	CCA	Title
05000321/FIN-2009006-07	2009Q3		Postulated Early Transfer of Non-Safety Buses
05000321/FIN-2009006-01	2009Q3	P.2	Failure to Perform Cause Determinations and Corrective Actions for Deficiences in Containment Penetration Seals
05000321/FIN-2009006-02	2009Q3	H.7	Failure to Correctly Establish Containment Isolation Valve Leakage Criteria for the Unit 2 Feedwater Check Valves
05000321/FIN-2009006-03	2009Q3		Non-Interruptible Essential Instrument Air Header Check Valves for Units 1 and 2
05000321/FIN-2009006-04	2009Q3		Reactor Building Equipment Drain Sump System for Units 1 and 2
05000321/FIN-2009006-05	2009Q3		Failure to Correctly Establish Acceptance Criteria for the Standby Diesel Service Water Pump Section
05000321/FIN-2009006-06	2009Q3	P.1	Failure to Monitor the Main Steam and Feedwater Line Pipe Whip Restraints
05000321/FIN-2009006-08	2009Q3		Degraded Voltage Protection
05000321/FIN-2009005-03	2009Q4	P.5 P.2(b)	Failure to establish and perform preventive maintenance activities to replace aged electrolytic capacitors for Yokagawa controller power supply
05000321/FIN-2009005-01	2009Q4		Submerged safety-related medium voltage cables
05000321/FIN-2009005-06	2009Q4		Failure to Monitor the Non-interruptible Instrument Air Check Valves
05000321/FIN-2009005-05	2009Q4		Reactor Building Equipment Drain Sump Level Detection is Not Single Failure Proof
05000321/FIN-2009005-04	2009Q4		Reactor Building Equipment Drain Sump System Not Scoped into Maintenance Rule
05000321/FIN-2010002-02	2010Q1	H.7	Failure to Implement Adequate Configuration Control on Unit 2 Main Generator Stator Water Cooling Temperature Control Instrument Loop, 2N43-F100
05000321/FIN-2010002-01	2010Q1		Review Licensee\'s EPD Calibration Methodology
05000321/FIN-2010003-02	2010Q2		Failure to follow corrective action program procedure and prevent recurrence of severity level 2 root cause
05000321/FIN-2010201-01	2010Q2	H.7	Security
05000321/FIN-2010003-01	2010Q2	H.5	Failure to maintain safety related cables in a nonsubmerged environment
05000321/FIN-2010003-03	2010Q2	H.5	Failure to follow procedure while in shutdown cooling to record corrected reactor water level
05000321/FIN-2010003-04	2010Q2		1A EDG fuel oil return line failure

Self-Identified List (Hatch)

	Q	Title
05000321/FIN-2009005-07	2009Q4	Licensee-Identified Violation
05000321/FIN-2009005-08	2009Q4	Licensee-Identified Violation
05000321/FIN-2010003-05	2010Q2	Licensee-Identified Violation
05000321/FIN-2010003-06	2010Q2	Licensee-Identified Violation

[Hatch Findings full list]

05000321/FIN-2010003-06

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