05000410/FIN-2018002-01

Finding

Title

Failure to Ensure Proper Control of the Standby Gas Treatment System Damper Valve, 2GTS*V2000B, Within Procedures, Materials, and Design Control Measures

Description

The inspectors identified a Green finding and associated NCVof 10 CFRPart 50, Appendix B, Criterion III, Design Control, when Exelon failed to ensure proper control of the SGTS damper valve 2GTS*V2000B within procedures, materials, and design control measures. Specifically, on April 15, 2018 operators attempted to run B SGTS for containment purge; however, no flow was observed and the system was secured. Operators discovered the 2GTS*V2000B closed due to the failure of the operating mechanism to maintain control of the valve position.

01
Site:	Nine Mile Point
Report	IR 05000410/2018002 Section 1R19
Date counted	Jun 30, 2018 (2018Q2)
Type:	NCV: Green
cornerstone	Barrier Integrity
Identified by:	NRC identified
Inspection Procedure:	IP 71111.19
Inspectors (proximate)	E Miller J Dolecki B Sienel J Kulp M Modes R Rolph A Rosebrook C Safouri J Schoppy B Smith C Cahill
Violation of:	10 CFR 50 Appendix B Criterion III, Design Control
CCA	P.1, Identification
INPO aspect	PI.1
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v • d • e

Finding - Nine Mile Point - IR 05000410/2018002

1(2)2(2)3(2)4(0)5(0)6(0)10(0)301(0)410(0)411(0)

IR 05000410/2018002: 2 1

Finding List (Nine Mile Point) @ 2018Q2

CCA Matrix: 2018Q2

	Q	CCA	Title
05000410/FIN-2017004-04	2017Q4		Ineffective Correction Action Results in Failure of Instrument Air System
05000410/FIN-2017004-03	2017Q4	H.5	Inadequate Operability Determination forImpairedInternal Flood Barrier
05000220/FIN-2017004-02	2017Q4	P.2	Inadequate Fill and VentProcedure for Control Room Chiller Results in Unplanned LCO Entry
05000220/FIN-2017004-01	2017Q4	H.13	Main Control Room Annunciators 10 CFR 50.65(a)(2) Demonstration Not Met
05000220/FIN-2018001-01	2018Q1		Potential Failure to Submit an 8-Hour Event Notification for a Valid Actuation of HPC
05000410/FIN-2018001-02	2018Q1		Potential Inadequate 50.59 Evaluation for TS 3.3.1.1 Bases Change
05000410/FIN-2018002-01	2018Q2	P.1	Failure to Ensure Proper Control of the Standby Gas Treatment System Damper Valve, 2GTS*V2000B, Within Procedures, Materials, and Design Control Measures
05000220/FIN-2018002-02	2018Q2	H.1	Inadequate Procedure Causes Water Hammer Condition Resulting in Isolation and Inoperability of the 12 Train of the Emergency Condenser System

Self-Identified List (Nine Mile Point)

	Q	Title
05000220/FIN-2017004-05	2017Q4	Licensee-Identified Violation

[Nine Mile Point Findings full list]

05000410/FIN-2018002-01

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