05000220/FIN-2018002-02

Finding

Title

Inadequate Procedure Causes Water Hammer Condition Resulting in Isolation and Inoperability of the 12 Train of the Emergency Condenser System

Description

The inspectors identified a Green finding and associated NCVof 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures and Drawings, when Exelon did not provide appropriate quantitative or qualitative criteria and guidance to operators in procedure N1- OP- 13 Emergency Cooling System to return an emergency condenser loop to service without inducing a water hammer condition which caused operators to re-isolate the emergency condenser loop and declare it inoperable

02
Site:	Nine Mile Point
Report	IR 05000220/2018002 Section 4OA2
Date counted	Jun 30, 2018 (2018Q2)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71152
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 10 CFR 50 Appendix B Criterion V
CCA	H.1, Resources
INPO aspect	LA.1
'
v • d • e

Finding - Nine Mile Point - IR 05000220/2018002

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

IR 05000220/2018002: 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]

05000220/FIN-2018002-02

Navigation menu

Search