05000445/FIN-2018001-04

Finding

Title

Inadequate Maintenance Procedure for Feedwater Valves

Description

The inspectors reviewed a self-revealed Green,non-cited violation of Technical Specification 5.4.1, Procedures, associated with the licensees failure to prescribe adequate procedures for performing maintenance on the feedwater bypass control valves. Specifically, the licensees procedure failed to specify the correct torque on the handwheel screw locknut, resulting in a loose locknut which led to a control valve failure and a turbine trip. This finding was entered into the licensees corrective action program as Condition Report CR-2017-009139.

04
Site:	Comanche Peak
Report	IR 05000445/2018001 Section 4OA3
Date counted	Mar 31, 2018 (2018Q1)
Type:	NCV: Green
cornerstone	Initiating Events
Identified by:	NRC identified
Inspection Procedure:	IP 71153
Inspectors (proximate)	J Josey R Kumana I Anchondo E Uribe M Haire
Violation of:	Technical Specification
INPO aspect
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v • d • e

Finding - Comanche Peak - IR 05000445/2018001

1(5)2(3)3(2)4(0)5(0)6(0)10(2)11(2)12(0)90(0)301(0)402(0)403(0)404(0)405(0)406(0)

IR 05000445/2018001: 1 2 3 4 5

Finding List (Comanche Peak) @ 2018Q1

CCA Matrix: 2018Q1

	Q	CCA	Title
05000446/FIN-2017003-01	2017Q3	H.5	Failure to Promptly Correct a Condition Adverse to Quality
05000445/FIN-2017003-02	2017Q3	H.8	Programmatic Failures to Control Transient Combustible Material in Accordance with a Fire Protection Procedure
05000445/FIN-2018001-01	2018Q1		Failure to Follow Commercial Grade Dedication Process
05000445/FIN-2018001-02	2018Q1		Failure to Incorporate Design Information Into System Test Procedures
05000445/FIN-2018001-03	2018Q1		Failure to Provide an Adequate Procedure
05000445/FIN-2018001-04	2018Q1		Inadequate Maintenance Procedure for Feedwater Valves
05000445/FIN-2018001-05	2018Q1		Failure to Correct a Significant Condition Adverse to Quality

Self-Identified List (Comanche Peak)

[Comanche Peak Findings full list]

05000445/FIN-2018001-04

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