05000390/FIN-2015004-07: Difference between revisions

Finding

Title

Licensee-Identified Violation

Description

Watts Bar Nuclear Plant TS 3.6.12 states that the ice condenser inlet doors, intermediate deck doors, and top deck doors shall be operable and closed. TS 3.6.12 Condition B requires that maximum ice bed temperature is verified to be less than 27 degrees F once per four hours (Action B1) when one or more doors is inoperable. Contrary to the above, four intermediate deck doors were inoperable from September 8, 2015 until September 17, 2015 and required action B1 of TS 3.6.12 Condition B was not performed. WBN maintenance personnel erected scaffolding on September 8, 2015 which blocked four intermediate deck doors in the Unit 1 upper ice condenser, which made the doors inoperable since the scaffolding would have prevented them from opening. The TS implications of the scaffold were not immediately recognized and therefore the required TS action B1 was not performed. The licensee identified this condition on September 16, 2015 and took immediate actions to enter TS LCO 3.6.12, Condition B, requiring that maximum ice bed temperature is verified to be less than 27 degrees F once per four hours (Action B1) and to restore the doors to operable status in 14 days (Action B2). The scaffold was removed on September 17, 2015; therefore, the 14-day completion time of TS 3.6.12 was not exceeded. A review of ice bed temperatures between September 8, 2015 and September 17, 2015 showed that ice bed temperatures never exceeded 27 degrees F as required by TS 3.6.12 Action B1. Using IMC 0609, Appendix A, Exhibit 2 (Mitigating Systems); this finding was determined to be of very low safety significance (Green) because it did not result in an actual loss of function of at least a single train of equipment for greater than its technical specification allowed outage time. This violation was entered into the WBN CAP under CR 1082469.

07
Site:	Watts Bar
Report	IR 05000390/2015004 Section 4OA7
Date counted	Dec 31, 2015 (2015Q4)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	Licensee-identified
Inspection Procedure:
Inspectors (proximate)	A Blamey A Nielsen C Even E Patterson J Eargle J Hamman J Nadel J Panfel J Rivera-Ortiz M Magyar M Read P Cooper R Baldwin R Carrion W Pursley
Violation of:	Technical Specification
INPO aspect
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v • d • e

Finding - Watts Bar - IR 05000390/2015004

0(0)1(0)2(5)3(0)4(7)5(0)7(3)9(0)10(1)301(0)403(2)404(8)405(1)406(0)407(0)409(0)410(0)502(0)602(0)603(0)604(0)605(0)608(0)609(0)610(0)611(0)613(0)615(0)616(0)408(0)601(0)602(0)603(0)604(0)605(0)606(0)607(0)609(0)610(0)611(0)613(0)614(0)

IR 05000390/2015004: 1 2 3 4 5 6 7

Finding List (Watts Bar) @ 2015Q4

CCA Matrix: 2015Q4

	Q	CCA	Title
05000390/FIN-2015007-03	2015Q1		Break In Non-Seismic ERCW Discharge Piping
05000390/FIN-2015007-02	2015Q1	H.14	Failure To Identify A Condition Adverse To Quality For Negative Fouling Factors
05000390/FIN-2015007-01	2015Q1		Failure To Perform An Adequate Water Hammer Test
05000390/FIN-2015002-05	2015Q2		Review of 10 CFR 50.59 Evaluation for the Emergency Diesel Generator Heat Exchanger
05000390/FIN-2015404-07	2015Q2		Security
05000390/FIN-2015404-01	2015Q2		Security
05000390/FIN-2015002-04	2015Q2	H.8	Failure to Follow Procedure during SSPS Testing
05000390/FIN-2015002-03	2015Q2		Failure To Consider The Effects Of A Break In Non- Seismic ERCW Piping
05000390/FIN-2015002-02	2015Q2	H.12	Failure to Track ApplicableTechnical Specification Action Statement for Residual Heat Removal System
05000390/FIN-2015002-01	2015Q2	H.14	Residual Heat Removal Flow Control Valves not Scoped in In-Service Testing Program
05000390/FIN-2015404-08	2015Q2		Security
05000390/FIN-2015404-06	2015Q2		Security
05000390/FIN-2015404-05	2015Q2		Security
05000390/FIN-2015404-04	2015Q2		Security
05000390/FIN-2015404-03	2015Q2		Security
05000390/FIN-2015404-02	2015Q2		Security
05000390/FIN-2015010-01	2015Q3		420 Minute Operator Manual Action to Provide Source Range Monitoring Capability
05000390/FIN-2015004-01	2015Q4		Failure to Perform ISI General Visual Examination of Containment Moisture Barrier Associated with Containment Liner Leak-chase Test Connection Threaded Pipe Plugs
05000390/FIN-2015004-03	2015Q4	H.12	Failure to Comply with Source Range Neutron Flux Channel Technical Specification Requiprements
05000390/FIN-2015004-06	2015Q4	H.5	Failure to Identify a Condition Adverse to Quality for Unacceptable Preconditioning of the 1A-A Charging Pump Discharge Check Valve
05000390/FIN-2015004-05	2015Q4	H.5	Core Barrel Lift Error Resulted in Unintended high Dose Rates
05000390/FIN-2015004-02	2015Q4		AFWST Permanent Plant Modification
05000390/FIN-2015004-04	2015Q4		Shield Building Operability Requirements

Self-Identified List (Watts Bar)

	Q	Title
05000390/FIN-2015403-01	2015Q3	Licensee-Identified Violation
05000390/FIN-2015403-02	2015Q3	Licensee-Identified Violation
05000390/FIN-2015004-07	2015Q4	Licensee-Identified Violation

[Watts Bar Findings full list]

@@ Line 1: / Line 1: @@
 {{finding
-| title = LICENSEE-IDENTIFIED Violation
+| title = Licensee-Identified Violation
 | docket = 05000390
 | inspection report = IR 05000390/2015004

05000390/FIN-2015004-07: Difference between revisions

Latest revision as of 10:53, 30 May 2018

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05000390/FIN-2015004-07: Difference between revisions

Latest revision as of 10:53, 30 May 2018

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