05000425/FIN-2018001-03

Finding

Title

Inadequate Refurbishment of Emergency Diesel Generator Pneumatic Control System Logic Boards

Description

A Green self-revealing NCV of TS Section 5.4.1.a, Procedures, was identified for the licensees failure to properly preplan and perform maintenance work on the Unit 2 B train (2B)emergency diesel generator (EDG) pneumatic control shutdown logic board. The inadequate shutdown logic board refurbishment resulted in a pneumatic control system air leak that generated an EDG shutdown signal during testing and de-energized the safety-related emergency power bus.

03
Site:	Vogtle
Report	IR 05000425/2018001 Section 4OA3
Date counted	Mar 31, 2018 (2018Q1)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	Self-revealing
Inspection Procedure:	IP 71153
Inspectors (proximate)	M Endress A Alen G Crespo A Blamey
Violation of:	Technical Specification
INPO aspect	LA.1
'
v • d • e

Finding - Vogtle - IR 05000425/2018001

1(3)2(2)3(1)4(0)5(0)6(0)11(0)90(0)410(3)411(0)412(0)440(0)

IR 05000425/2018001: 1 2 3

Finding List (Vogtle) @ 2018Q1

CCA Matrix: 2018Q1

	Q	CCA	Title
05000425/FIN-2017003-02	2017Q3	H.1	Failure to Maintain ECCS Flow Balance and Check Valve Inservice Test Procedure
05000425/FIN-2017003-03	2017Q3	H.12	Failure to Maintain Cleanliness of Motor Operated Valve Limit Switch Compartment
05000424/FIN-2017406-01	2017Q3		Security
05000424/FIN-2017003-01	2017Q3	H.11	Failure to Implement and Establish Appropriate Work Instructions Affecting Safety-Related Chiller
05000425/FIN-2017009-01	2017Q4		Failure to Install Drain Hole
05000425/FIN-2017004-01	2017Q4		Failure to Implement and Establish Appropriate Work Instructions for PMT of Namco Limit Switch on 2HV-8920
05000424/FIN-2017004-02	2017Q4	H.1	Failure to Maintain NEMA Type 4 Qualification for the Nuclear Service Cooling Water Pumps
05000424/FIN-2018001-01	2018Q1		Failure to Provide Work Instructions for Sealing Around NSCW System Pump Shaft Well Access Openings
05000424/FIN-2018001-02	2018Q1		Inadequate Acceptance Criteria for Testing of NSCW Pump Discharge Valves
05000425/FIN-2018001-03	2018Q1		Inadequate Refurbishment of Emergency Diesel Generator Pneumatic Control System Logic Boards
05000424/FIN-2018410-01	2018Q1		Security
05000424/FIN-2018410-02	2018Q1		Security
05000424/FIN-2018410-03	2018Q1		Security

Self-Identified List (Vogtle)

	Q	Title
05000424/FIN-2017003-04	2017Q3	Licensee-Identified Violation
05000424/FIN-2017003-05	2017Q3	Licensee-Identified Violation
05000424/FIN-2017004-03	2017Q4	Licensee-Identified Violation

[Vogtle Findings full list]

05000425/FIN-2018001-03

Navigation menu

Search