05000457/FIN-2015004-02

Finding

Title

Failure of Startup Feedwater Pump to Start During Plant Shutdown

Description

The inspectors identified an URI based upon the startup feedwater pumps (SUFWPs) failure to start during a plant shutdown. In addition to being used in plant startups and shutdowns, the SUFWP is also credited in the licensees emergency operating procedure as a means to add water to the steam generators for decay heat removal if the safety-related auxiliary feedwater systems failed to function properly during an event. On October 4, 2015, operations attempted to start the Unit 2 SUFWP at low power in Mode 1 during plant shutdown activities for a refueling outage. Upon start, the SUFWP automatically tripped. The licensee completed an apparent cause evaluation to determine the reason why the pump did not start and run. At the end of the inspection period, the inspectors were awaiting additional information to complete their review to determine if this issue of concern constituted a performance deficiency. This URI will remain open pending this review.

02
Site:	Braidwood
Report	IR 05000457/2015004 Section 1R20
Date counted	Dec 31, 2015 (2015Q4)
Type:	URI:
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.2
Inspectors (proximate)	C Hunt D Betancourt E Duncan G Hausman J Benjamin M Doyle N Feliz-Adorno T Go D Sargisb Bostnc Hunt D Betancourt D Mcneil D Reeser G Edwards J Benjamin J Bozga J Jandovitz M Garza T Bilik T Go
INPO aspect
'
v • d • e

Finding - Braidwood - IR 05000457/2015004

1(4)2(3)3(2)4(4)5(0)6(0)7(1)403(0)404(1)405(0)406(0)407(1)501(0)2(0)

IR 05000457/2015004: 3 4 1 2

Finding List (Braidwood) @ 2015Q4

CCA Matrix: 2015Q4

	Q	CCA	Title
05000456/FIN-2015001-01	2015Q1		Failure to Ensure that Temporary Structures Did Not Adversely Impact Safety during Postulated Probable Maximum Precipitation Event
05000456/FIN-2015001-02	2015Q1	H.6	Failure to Adequately Evaluate Operability of a Degraded Control Room Chiller
05000456/FIN-2015001-03	2015Q1	H.3	Failure to Activate the ERO During an Actual Event
05000456/FIN-2015404-01	2015Q2		Security
05000456/FIN-2015002-01	2015Q2		Failure to Update the Final Safety Analysis Report-Thimble Tube Inspection Program
05000456/FIN-2015002-02	2015Q2	H.14	Mechanic Joint Leakage Accepted for Continued Service Without Code Corrective Actions
05000456/FIN-2015002-03	2015Q2	P.3	Control Room Chiller Inoperability Due to High Oil Content in the Refrigerant
05000456/FIN-2015007-01	2015Q3		Failure to Ensure that Circuits Associated with Pressurizer PORVs and Block Valves Were Free of Fire Damage
05000456/FIN-2015004-03	2015Q4		Failure to Establish Adequate Feedwater Pump Operational Guidance During a Normal Plant Shutdown
05000456/FIN-2015004-04	2015Q4		Failure to Establish a Written Procedure for a Loss of Feedwater Event in Mode 3
05000457/FIN-2015004-01	2015Q4		Loss of Shutdown Cooling Train During Refueling Cavity Fill and Associated Reduced Inventory Operations
05000457/FIN-2015004-02	2015Q4		Failure of Startup Feedwater Pump to Start During Plant Shutdown

Self-Identified List (Braidwood)

	Q	Title
05000456/FIN-2015001-04	2015Q1	Licensee-Identified Violation
05000456/FIN-2015003-01	2015Q3	Licensee-Identified Violation
05000456/FIN-2015003-02	2015Q3	Licensee-Identified Violation
05000456/FIN-2015407-01	2015Q4	Licensee-Identified Violation

[Braidwood Findings full list]

05000457/FIN-2015004-02

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