05000528/FIN-2004003-06: Difference between revisions

Finding

Title

Failure to Perform a Complete Shut Down Cooling Heat Exchanger Temperature LOOP Channel Calibration

Description

A Severity Level IV noncited violation of Technical Specification 3.3.11 was identified for the failure to include the resistance temperature detectors in the channel calibration for the shutdown cooling heat exchanger temperature instruments. Specifically, prior to the implementation of Improved Technical Specifications, the licensee did not perform testing of the resistance temperature detectors. Following the implementation of Improved Technical Specifications, the licensee did not perform an in-place qualitative assessment of the resistance temperature detectors' behavior. This issue was entered into the corrective action program as CRDR 280178 The failure to perform a complete shutdown cooling heat exchanger temperature loop channel calibration is determined to have greater than minor significance because the licensee's failure to report the condition impacted the NRC's ability to perform it's regulatory function. Therefore, this finding was considered applicable to traditional enforcement. Although the significance determination process is not designed to assess the significance of violations that potentially impact or impede the regulatory process, the finding can be assessed using the significance determination process. Using the Phase 1 worksheet in Manual Chapter 0609, "Significance Determination Process," this finding is determined to be of very low safety significance because it only affected the mitigating system cornerstone and the resistance temperature detectors were found to be within calibration.

06
Site:	Palo Verde
Report	IR 05000528/2004003 Section 4OA2
Date counted	Jun 30, 2004 (2004Q2)
Type:	TEV: Severity level IV
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71152
Inspectors (proximate)	D Carter E Crowe B Henderson C Johnson G Replogle J Melfi T Mcconnell G Warnick N Salgado R Azua J Mateychick T Pruett J Tapia
INPO aspect
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v • d • e

Finding - Palo Verde - IR 05000528/2004003

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 05000528/2004003: 2 6

Finding List (Palo Verde) @ 2004Q2

CCA Matrix: 2004Q2

	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

Self-Identified List (Palo Verde)

[Palo Verde Findings full list]

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05000528/FIN-2004003-06: Difference between revisions

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