05000327/FIN-2010005-04: Difference between revisions

Finding

Title

LICENSEE-IDENTIFIED Violation

Description

On October 15, 2010, a one foot gap was discovered in the structural steel above the Unit 1 keyway inside the locked boundary of the Very High Radiation Area. Access to the Unit 1 keyway is obtained by entering through a locked caged door which provides access to an opening to the keyway. The location of the gap created the potential for individual to bypass the cage door and gain unauthorized access to the opening by climbing on the structural steel. 10 CFR Part 20.1602 requires that in addition to the controls specified in 10 CFR Part 20.1601, Control of access to high radiation areas, the licensee shall institute additional measures to ensure that an individual is not able to gain unauthorized or inadvertent access to Very High Radiation Areas. Contrary to the above, the gap in the structural steel provided a method for an individual to gain unauthorized or inadvertent access to the opening. The licensee identified the gap during routine surveys and checks of LHRAs and initiated immediate corrective action to control the VHRA. The licensee removed the lock from the caged door and relocated it to the metal louver covers directly above the opening to the keyway. Additional chains were added to the covers to reinforce and secure the access point directly above the opening. Although this event involved the failure to appropriately control access to a Very High Radiation Area, this finding is of very low safety significance because there was no substantial potential for overexposure and the licensees ability to assess dose was not compromised. The immediate corrective actions were documented in PER 266769. The long term corrective actions include fabricating additional materials to secure the area

04
Site:	Sequoyah
Report	IR 05000327/2010005 Section 4OA7
Date counted	Dec 31, 2010 (2010Q4)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	Licensee-identified
Inspection Procedure:
Inspectors (proximate)	R Patterson R Williams S Sandal W Deschaine W Loo C Young E Guthrie L Lake L Mahlahla M Riches M Speck P Higgins R Aiello R Baldwin R Hamilton
INPO aspect
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v • d • e

Finding - Sequoyah - IR 05000327/2010005

301(0)2(2)3(0)4(4)5(4)7(2)8(0)301(0)302(0)402(0)403(0)404(2)501(0)502(0)8(0)603(0)5(0)

IR 05000327/2010005: 1 2 3 4

Finding List (Sequoyah) @ 2010Q4

CCA Matrix: 2010Q4

	Q	CCA	Title
05000327/FIN-2010002-01	2010Q1	H.12	Reactor Trip due to Inadequate Configuration Control
05000327/FIN-2010007-01	2010Q2	P.2	Violation of 10 CFR 50, Appendix B, Criterion V for Failure to Follow Procedure for Vendor Contact Program
05000327/FIN-2010007-02	2010Q2		Degraded Voltage Relay Issue
05000327/FIN-2010004-01	2010Q3	P.1 P.1(a)	Inadequate Inspection of Raw Water Side of Containment Spray Heat Exchangers
05000327/FIN-2010004-02	2010Q3		Non-Conservative Design Calculation for RHR Suction Temperature Limit
05000327/FIN-2010004-03	2010Q3	H.14	Failure to Maintain Thermal Power Less Than Licensed Limit
05000327/FIN-2010005-02	2010Q4	H.4 H.5	Failure to implement Technical Specification requirements to vent ECCS piping
05000327/FIN-2010005-03	2010Q4		Failure to Use Worst Case 6900 VAC Bus Voltage in Design Calculations
05000327/FIN-2010404-01	2010Q4		Security
05000327/FIN-2010005-01	2010Q4		Failure to Collect Reactor Coolant Pump Oil Leakage

Self-Identified List (Sequoyah)

	Q	Title
05000327/FIN-2010002-02	2010Q1	Licensee-Identified Violation
05000327/FIN-2010004-04	2010Q3	Licensee-Identified Violation
05000327/FIN-2010005-04	2010Q4	Licensee-Identified Violation
05000327/FIN-2010404-02	2010Q4	Security

[Sequoyah Findings full list]

@@ Line 1: / Line 1: @@
 {{finding
-| title = Licensee-Identified Violation
+| title = LICENSEE-IDENTIFIED Violation
 | docket = 05000327, 05000328
 | inspection report = IR 05000327/2010005

05000327/FIN-2010005-04: Difference between revisions

Revision as of 23:11, 29 May 2018

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05000327/FIN-2010005-04: Difference between revisions

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