05000528/FIN-2004014-03: Difference between revisions

Finding

Title

Failure to Perform Written Safety Evaluation in Accordance with 10 CFR 50.59 Requirements

Description

The team identified three examples of a noncited, Severity Level IV violation of 10 CFR 50.59 requirements involving the failure to perform written safety evaluations prior to implementing changes to the facility. The first example involved a change for using manual actions in lieu of automatic actions as compensatory measures to support the safety functions of the high pressure safety injection and containment spray systems during postulated design basis loss-of-coolant accident conditions following a recirculation actuation signal. The second example involved operation of emergency core cooling systems with a 10-20 cubic foot void in the suction piping. The third example involved the failure to perform a written safety evaluation for changes involving filling the containment sump with borated water to a level above the containment sump safety injection recirculation piping. These changes were implemented in response to identifying that the safety injection system was not being maintained full of water In accordance with Inspection Manual Chapter 0612, Appendix B, "Issue Disposition Screening," the team determined that traditional enforcement applied because this finding may have impacted the NRC's ability to perform its regulatory function. The severity level of this finding was assessed as having very low safety significance reflective of a Severity Level IV violation. This determination was based in part on use of the significance determination process.

03
Site:	Palo Verde
Report	IR 05000528/2004014 Section 4OA5
Date counted	Dec 31, 2004 (2004Q4)
Type:	TEV: Severity level IV
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 93812
Inspectors (proximate)	A Howell G Miller J Shea M Hay
Violation of:	10 CFR 50.59
INPO aspect
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Finding - Palo Verde - IR 05000528/2004014

1(0)2(0)3(2)4(0)5(0)6(1)7(0)8(0)9(0)11(0)12(0)13(0)14(4)15(0)301(0)1(0)9(0)

IR 05000528/2004014: 1 3 4 1

Finding List (Palo Verde) @ 2004Q4

CCA Matrix: 2004Q4

	Q	Title
05000528/FIN-2004003-02	2004Q2	Containment Purge Penetration Nonconformance
05000528/FIN-2004003-06	2004Q2	Failure to Perform a Complete Shut Down Cooling Heat Exchanger Temperature LOOP Channel Calibration
05000528/FIN-2004006-02	2004Q2	Failure to Provide an Evaluation of a Change to the Facility as Described in the UFSAR, Under 10 CFR 50.59 Requirements
05000528/FIN-2004014-01	2004Q4	Failure to Maintain Design Control of Containment Sump Recirculation Piping
05000528/FIN-2004014-03	2004Q4	Failure to Perform Written Safety Evaluation in Accordance with 10 CFR 50.59 Requirements
05000528/FIN-2004014-04	2004Q4	Failure to Obtain Prior NRC Approval for a Change to the Facility Involving Maintaining a Significant Segment of Containment Sump Safety Injection Recirculation Piping Void of Water

Self-Identified List (Palo Verde)

[Palo Verde Findings full list]

@@ Line 1: / Line 1: @@
 {{finding
-| title = Failure To Perform Written Safety Evaluation In Accordance With 10 Cfr 50.59 Requirements
+| title = Failure to Perform Written Safety Evaluation in Accordance with 10 CFR 50.59 Requirements
 | docket = 05000528, 05000529, 05000530
 | inspection report = IR 05000528/2004014

05000528/FIN-2004014-03: Difference between revisions

Revision as of 18:44, 20 February 2018

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05000528/FIN-2004014-03: Difference between revisions

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