05000346/FIN-2004015-01: Difference between revisions

Finding

Title

Failure to Perform Appropriate 50.59 Screening Concerning ECCS Sump Pump Affect on ECCS Component Operability

Description

A failure to perform an adequate safety evaluation review as required by 10 CFR 50.59 for changes made to the facility as described in the Updated Safety Analysis Report (USAR) was self-revealed. In June 2003, the licensee changed the limit and precautions sections of several procedures to specify that emergency core cooling system (ECCS) room sump pumps were not required to be in service for ECCS and containment spray equipment operability. However, the USAR credits the ECCS sump pumps and their running lights for providing indication of the need for operator action in response to a passive failure in the ECCS system. The procedure changes were inappropriately categorized as being exempt from the 50.59 process because the changes involved "Managerial or Administrative Procedures." Because the issue affected the NRC's ability to perform its regulatory function, this finding was evaluated with the traditional enforcement process. The finding was determined to be of very low safety significance because, although the procedure changes could have resulted in the operation outside the requirements of technical specification action statements, no loss of function occurred. This was determined to be a Severity Level IV NCV of 10 CFR 50.59.

01
Site:	Davis Besse
Report	IR 05000346/2004015 Section 1R06
Date counted	Dec 31, 2004 (2004Q4)
Type:	TEV: Severity level IV
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.06
Inspectors (proximate)	P Lougheed G Roach J House J Rutkowski S Thomas D Passehl K Walton C Lipa M Salter -William
INPO aspect
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v • d • e

Finding - Davis Besse - IR 05000346/2004015

12(0)2(1)3(0)4(0)5(1)6(0)7(0)8(0)9(1)10(2)12(0)13(0)14(0)15(1)16(0)17(0)18(0)301(0)

IR 05000346/2004015: 1

Finding List (Davis Besse) @ 2004Q4

CCA Matrix: 2004Q4

	Q	Title
05000346/FIN-2003010-23	2004Q1	Inappropriate Application of 10 CFR 50.59
05000346/FIN-2004002-02	2004Q1	Change to Emergency Plan Without Prior NRC Approval
05000346/FIN-2004009-01	2004Q3	Incomplete Information Provided to NRC in Licensing Submittal
05000346/FIN-2004010-02	2004Q3	Inadequate 10 CFR 50.59 Evaluation Regarding Tornado Missile Protection for EDG Exhaust Stacks
05000346/FIN-2004010-10	2004Q3	Inadequate Safety Evaluation for Changes to the Plant made as Described in the USAR Concerning the low-low pressure interlock for the AFW Pumps
05000346/FIN-2005010-01	2004Q4	Failure of the Emergency Planning Zone Sirens
05000346/FIN-2004015-01	2004Q4	Failure to Perform Appropriate 50.59 Screening Concerning ECCS Sump Pump Affect on ECCS Component Operability

Self-Identified List (Davis Besse)

[Davis Besse Findings full list]

@@ Line 1: / Line 1: @@
 {{finding
-| title = Failure To Perform Appropriate 50.59 Screening Concerning Eccs Sump Pump Affect On Eccs Component Operability
+| title = Failure to Perform Appropriate 50.59 Screening Concerning ECCS Sump Pump Affect on ECCS Component Operability
 | docket = 05000346
 | inspection report = IR 05000346/2004015

05000346/FIN-2004015-01: Difference between revisions

Revision as of 19:44, 20 February 2018

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05000346/FIN-2004015-01: Difference between revisions

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