05000281/FIN-2018002-01

Finding

Title

Failure to Follow Preventative Maintenance Procedure Results in Additional Failures of Emergency Bus Undervoltage and Degraded Voltage Relays

Description

An NRC-identified Green NCV of Surry Technical Specification (TS) 6.4.D was identified for the failure to follow procedure ER-AA-102, Preventative Maintenance Program, which resulted in the Unit 2 H emergency bus degraded voltage (DV) relay failure on March 13, 2018, and the Unit 2 J emergency bus under voltage (UV) relay failure on May 21, 2018, while the unit was operating at rated thermal power (RTP).

01
Site:	Surry
Report	IR 05000281/2018002 Section 4OA2
Date counted	Jun 30, 2018 (2018Q2)
Type:	NCV: Green
cornerstone	Initiating Events
Identified by:	NRC identified
Inspection Procedure:	IP 71152
Inspectors (proximate)	P Mckenna C Read A Butcavage R Carrion C Fontana S Sanchez J Tornow J Walker S Rose
Violation of:	Technical Specification - Procedures
CCA	P.3, Resolution
INPO aspect	PI.3
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v • d • e

Finding - Surry - IR 05000281/2018002

1(0)2(1)3(1)4(0)5(0)6(0)7(0)10(1)12(0)201(0)410(0)412(0)

IR 05000281/2018002: 1

Finding List (Surry) @ 2018Q2

CCA Matrix: 2018Q2

	Q	CCA	Title
05000280/FIN-2017007-01	2017Q3		Failure to Evaluate Design Maximum Ambient Temperature Effect on Main Steam Valve House
05000280/FIN-2017004-01	2017Q4		Inadequate Instructions for Corrective Maintenance on Unit 1 C RC Hot Leg Sample Valve
05000280/FIN-2017004-02	2017Q4	P.2	Failure to Identify a Non-Functional Flood Control Barrier
05000280/FIN-2018010-01	2018Q1		Failure to implement the 10 CFR, Part 50, Appendix R, III.G.3 requirements consistent with fire protection license condition 3I.
05000281/FIN-2018002-01	2018Q2	P.3	Failure to Follow Preventative Maintenance Procedure Results in Additional Failures of Emergency Bus Undervoltage and Degraded Voltage Relays

Self-Identified List (Surry)

[Surry Findings full list]

05000281/FIN-2018002-01

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