ENS 49343

v t e ENS Event
07:00 Sep 14, 2013
Title	Liquid Penetration Examination Results in Indication on Reactor Vessel Head Penetration
Event Description	On September 14, 2013, during the A1R17 Braidwood Station Unit 1 refueling outage, an inservice Liquid Penetration examination was performed on the previously repaired Penetration 69. This repair was performed during A1R16. The PT [Penetrant Testing] examination revealed 22 recordable indication and 5 non-relevant indications. Rounded indications that exceed 3/16" are rejectable. All 22 indications are rounded and 13 of these indications exceed the 3/16" criteria. This is reportable pursuant to 10 CFR 50.72(b)(3)(ii)(A) since the as found indication did not meet the applicable acceptance criteria referenced in ASME Code Case N-729-1 to remain in-service without repair. NRC Resident Inspector has been informed.

ENS 49343 +/-
Where
Braidwood Illinois (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
LER:	05000456/LER-2013-002 Re Liquid Penetrant Indications in Embedded Flaw Repair of Control Rod Drive Mechanism Penetration 69 During Refueling Outage
Time - Person (Reporting Time:+-1.22 h-0.0508 days <br />-0.00726 weeks <br />-0.00167 months <br />)
Opened:	James Ledbetter 05:47 Sep 14, 2013
NRC Officer:	Dong Park
Last Updated:	Sep 14, 2013
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v • d • e

v t e Emergency Notification System
Braidwood with 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
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