05000456/FIN-2010004-04
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Finding | |
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| Title | Potentially Inadequate Emergency Preparedness Critique |
| Description | An URI was identified to determine whether the licensees critique process adequately identified the appropriate weaknesses associated with a Drill & Exercise Performance (DEP) PI failure on July 21, 2010. The Emergency Preparedness Cornerstone licensee response band was established by the PI scheme and the licensees CAP. Identified weaknesses come from drill and exercise critiques. The baseline inspection program was based on identification and correction of these performance weaknesses and on accurate PI data. The DEP PI was based on the licensees ability to determine whether a PI opportunity was successful. On July 21, 2010, the licensee conducted a combined simulator, TSC, and Operational Support Center emergency preparedness full-scale drill. The NRC inspectors observed this drill from the TSC and the simulator. The licensee concluded that the overall performance during the drill was satisfactory, including successfully demonstrating seven of eight DEP PIs. The licensee identified one drill deficiency for the inappropriate inject by the TSC lead controller. The licensee determined that this inject caused the general emergency classification to be rated as a failure for the DEP PI. The NRC inspectors questioned the adequacy of the critique process regarding the basis of this DEP PI failure. According to the licensees final critique, the scenario was designed such that the first indication for meeting the General Emergency declaration threshold (Time T=0) was based on Controller Message, CM-10. Accordingly, at the time CM-10 was given to the drill players, there was no indication available to the players that a General Emergency was required to be declared. In the next 15 minutes, TSC players did not declare a General Emergency. After 17 minutes, the lead controller informed the Station Emergency Director that the time limit for classification of the General Emergency was exceeded and instructed the Emergency Director to declare a General Emergency. Based on this, the Station Emergency Director declared a General Emergency, as expected in the scenario. However, the licensees final critique determined that the Station Emergency Director did not have sufficient evidence that plant conditions could not be recovered such that the threshold for a General Emergency was met. Therefore, the licensee concluded that the Station Emergency Director was correct in not declaring the General Emergency. Furthermore, the licensee determined that the reason for the DEP PI failure was due to the improper inject provided by the lead controller. The inspectors opened this URI to determine whether a performance deficiency exists regarding the licensees ability to observe, identify, evaluate, and critique a weakness associated with a risk significant planning standard. This URI will remain open pending a review of the licensees critique process to determine if it adequately identified the appropriate weakness(es) associated with the failure of the DEP PI. (URI 05000456/2010004-04; 05000457/2010004-04, Potentially Inadequate Emergency Preparedness Critique) |
| Site: | Braidwood  |
|---|---|
| Report | IR 05000456/2010004 Section 1EP6 |
| Date counted | Sep 30, 2010 (2010Q3) |
| Type: | URI: |
| cornerstone | Emergency Prep |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71114.06 |
| Inspectors (proximate) | D Betancourt E Duncan J Benjamin M Perry M Thorpe Kavanaugh T God Betancourte Duncan J Benjamin J Gall J Gilliam M Holmberg M Perry M Thorpe Kavanaugh N Feliz Adorno R Jicklin |
| INPO aspect | |
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Finding - Braidwood - IR 05000456/2010004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Braidwood) @ 2010Q3
Self-Identified List (Braidwood)
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