05000346/FIN-2008002-05: Difference between revisions

Finding

Title

Licensee-Identified Violation

Description

Technical Specification 3.7.6.1 states control room emergency ventilation system requires two independent control room emergency ventilation systems (monitors) be operable while plant is operating in modes 1, 2, 3, and 4. With both channels of station vent normal range radiation monitoring instrumentation inoperable, TS LCO 3.7.6.1 Action C requires that within one hour the control room normal ventilation system be isolated and at least one control room emergency ventilation train placed in operation. Contrary to this requirement, on October 16 and 22, 2007, both trains of Station Vent Radiation Monitors were inoperable for more that one hour without entering into TS 3.7.6.1 Action C. This issue was entered into the licensees Corrective Action Program as CR 07-29410. The issue is of very low safety significance because it did not involve ALARA planning or work controls, an overexposure, substantial potential for overexposure, or the ability to assess radiation dose

05
Site:	Davis Besse
Report	IR 05000346/2008002 Section 4OA7
Date counted	Mar 31, 2008 (2008Q1)
Type:	NCV: Green
cornerstone	Or Safety
Identified by:	Licensee-identified
Inspection Procedure:
Inspectors (proximate)	R Jickling J Jandovitz J Jacobson T Bilik M Phalen G Wright J Rutkowski R Smith A Wilson T Go T Taylor J Cameron J Draper P Voss
INPO aspect
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v • d • e

Finding - Davis Besse - IR 05000346/2008002

2(0)1(0)2(5)3(2)4(2)5(2)7(0)8(1)201(1)301(0)402(0)403(0)404(0)501(0)

IR 05000346/2008002: 1 2 3 4 5

Finding List (Davis Besse) @ 2008Q1

CCA Matrix: 2008Q1

	Q	CCA	Title
05000346/FIN-2007004-02	2007Q3		Reduced Flow Through Component Cooling Water 1 Heat Exchanger Because of Improper Valve Opening Limit Stop
05000346/FIN-2007007-05	2007Q4		Concern Regarding SAFETY-RELATED Battery Electrical Isolation
05000346/FIN-2008002-02	2008Q1	H.7	Air Void in Decay Heat/Low Pressure Injection System Due to Inadequate Venting After Maintenance
05000346/FIN-2008002-01	2008Q1	H.2	Failure to Follow Welding Procedures
05000346/FIN-2008002-03	2008Q1	H.4 H.5	Unexpected Reactivity Excursion Due to Unidentified Valve Position During Post Repair Air Pressure Testing

Self-Identified List (Davis Besse)

	Q	Title
05000346/FIN-2008002-04	2008Q1	Licensee-Identified Violation
05000346/FIN-2008002-05	2008Q1	Licensee-Identified Violation

[Davis Besse Findings full list]

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05000346/FIN-2008002-05: Difference between revisions

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