Finding | |
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| Title | Failure to Make an 8 Hour Notification to the NRC for Loss of Both Edgs |
| Description | A finding of very low safety significance and an associated Severity Level IV NCV of 10 CFR 50.72(b)(3)(v) were identified by the inspectors for the failure of the licensee to make an eight-hour notification to the NRC for the loss of both emergency diesel generators (EDGs). The licensee entered this into their corrective action program (CAP) as CAP 053463 and updated the event notification (EN 43692) to include the loss of safety function resulting from both EDGs being inoperable from 0408 to 0715 on October 5, 2007. The inspectors determined that the failure to report the loss of safety function of the onsite emergency AC power system in accordance with 10 CFR 50.72(b)(3)(v) was a performance deficiency. The NRC considers the safety implications of non-compliances that may impact the ability to carry out its statutory mission. Non-compliances may be significant because they may challenge the regulatory envelope upon which certain activities were licensed. This issue is greater than minor, because the failure to report the loss of the EDGs affected the NRCs ability to perform a regulatory function. Because violations of 10 CFR 50.72 are considered to be violations that potentially impede or impact the regulatory process, they are dispositioned using the traditional enforcement process instead of the SDP. However, if possible, the underlying technical issue is evaluated under the SDP to determine the severity of the violation. Using IMC 0609, Significance Determination Process, the inspectors screened this issue as having very low safety significance using the phase 1 screening questions under the Mitigation System Cornerstone. |
| Site: | Duane Arnold  |
|---|---|
| Report | IR 05000331/2007005 Section 4OA3 |
| Date counted | Dec 31, 2007 (2007Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | D Mcneil R Jickling N Valos R Orlikowski C Moore R Baker T Go J Bartleman K Barclay J Tapp |
| INPO aspect | |
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Finding - Duane Arnold - IR 05000331/2007005 | |||||||||||||||||||||
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Finding List (Duane Arnold) @ 2007Q4
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