05000327/FIN-2018001-01

Finding

Title

Essential Raw Cooling Water Pumps Inoperable due to Frozen Motor Bearing Cooling Lines

Description

A self-revealing Green NCV of Technical Specification 5.4.1, Procedures, was identified when Sequoyah/TVA did not establish, implement and maintain applicable procedures recommended in Regulatory Guide 1.33, Appendix A, Section 9, Procedures for Performing Maintenance. Specifically, the essential raw cooling water (ERCW) pump motor maintenance procedure, 0-MI-MRR-067-002.0, Removal/Disassembly/Reassembly Instruction for ERCW Pumps does not contain specific direction for the slope of the motor bearing cooling supply and return lines for the motor reassembly.

01
Site:	Sequoyah
Report	IR 05000327/2018001 Section 1R15
Date counted	Mar 31, 2018 (2018Q1)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	Self-revealing
Inspection Procedure:	IP 71111.15
Inspectors (proximate)	D Hardage G Eatmon W Deschaine A Masters
Violation of:	Technical Specification
INPO aspect
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v • d • e

Finding - Sequoyah - IR 05000327/2018001

411(0)1(3)2(0)3(1)4(0)6(0)10(0)13(0)410(0)411(1)412(0)440(0)

IR 05000327/2018001: 1 2 3

Finding List (Sequoyah) @ 2018Q1

CCA Matrix: 2018Q1

	Q	Title
05000327/FIN-2017008-01	2017Q4	Unjustified Qualified Life for Target Rock Power-Operated Relief Valves
05000327/FIN-2017008-02	2017Q4	Inadequate Qualification for Unit 1 Reactor Lower Compartment Cooler Motors
05000327/FIN-2017008-03	2017Q4	Potential Inadequate Use of Thermal Aging and the Arrhenius Methodology
05000327/FIN-2017008-04	2017Q4	Potential Inadequate Determination of Failure Modes for Qualified Life for Foxboro/Weed Instrument
05000327/FIN-2017008-05	2017Q4	Potential Inadequate Justification for Eliminating Preventative Maintenance for ASCO Valves
05000327/FIN-2017008-06	2017Q4	Potential Unjustified Qualified Life for ASCO Solenoid Operated Valves
05000327/FIN-2017407-01	2017Q4	Security
05000327/FIN-2018001-02	2018Q1	Improper Calibration of Reactor Trip Instrumentation Results in a Condition Prohibited by Technical Specifications
05000327/FIN-2018001-01	2018Q1	Essential Raw Cooling Water Pumps Inoperable due to Frozen Motor Bearing Cooling Lines

Self-Identified List (Sequoyah)

	Q	Title
05000327/FIN-2018001-03	2018Q1	Licensee-Identified Violation

[Sequoyah Findings full list]

05000327/FIN-2018001-01

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