05000313/FIN-2013011-02
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Finding | |
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Title | Damage to Unit 1 and Unit 2 Structures, Systems and Components |
Description | The team observed damage to both Unit 1 and Unit 2 involving fire barriers, fire doors, fire penetrations, fire suppression water piping, fire suppression carbon dioxide piping, instrument air piping, hydrogen piping, flood barriers, ventilation ducting, structural members, electrical cabinets and electrical buswork. The licensees assessment of damage was still in progress at the conclusion of the inspection. The licensee performed the following inspections: Visually inspected the walls, floors, structural supports, and ceilings of the accessible areas. Visually inspected the accessible electrical, mechanical, and fire protection equipment for obvious misalignment or damage. Performed resistance tests on various pieces of affected electrical equipment. Retrieved and analyzed the recordings of the 6 seismic monitoring stations. The licensee entered numerous condition reports in their corrective action program concerning damage to walls, floors, ceilings, structural support beams, doors, conduit, cable tray, pipe supports, insulation, anchor bolts, flood barriers, ventilation ducting, fire doors, fire barriers, hydrogen piping, instrument air piping, carbon dioxide piping, electrical cabinets and buswork, mechanical equipment, fire water piping and equipment in the affected areas of both Unit 1 and Unit 2 structures. Due to the volume of condition reports written for both units identifying damage, the licensee initiated summary condition reports for the individual units. The summary condition reports for Unit 1 and Unit 2 are CR-ANO-1-2013-00868 and CR-ANO-2-2013-00620, respectively. Since full assessment of the equipment impact is not possible until debris removal activities are completed, this item is unresolved pending further evaluation of the structural and equipment damage caused by the dropping of the Unit 1 stator. This issue is identified as URI 05000313/2013011-002; 05000368/2013011-002, Damage to Unit 1 and Unit 2 Structures, Systems and Components. |
Site: | Arkansas Nuclear |
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Report | IR 05000313/2013011 Section 4OA5 |
Date counted | Jun 30, 2013 (2013Q2) |
Type: | URI: |
cornerstone | Mitigating Systems |
Identified by: | NRC identified |
Inspection Procedure: | IP 93800 |
Inspectors (proximate) | A Sanchez D Allen D Loveless G Miller J Watkins S Jonesb Lattag Werner J Melfi L Willoughby N Okonkwo |
INPO aspect | |
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Finding - Arkansas Nuclear - IR 05000313/2013011 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Arkansas Nuclear) @ 2013Q2
Self-Identified List (Arkansas Nuclear)
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