05000275/FIN-2014002-02
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Finding | |
|---|---|
| Title | Inappropriate Fatigue Rule Waivers |
| Description | The inspectors identified a Green non-cited violation of 10 CFR 26.207(a) for Pacific Gas and Electrics (PG&E) inappropriate granting of waivers necessary to mitigate or prevent conditions adverse to safety, and to the extent practicable, rely on the granting of waivers only to address circumstances that could not have been reasonably controlled. Specifically, PG&E supervisors granted multiple fatigue waivers to covered workers during the DCPP Unit 1 February 2014, refueling outage that were determined to be inappropriate based on plant conditions. Immediate corrective action was to enter this condition into their corrective action program as Notification 50615724 for further evaluation. The inspectors determined that PG&Es inappropriate granting of waivers in accordance with regulatory requirements was a performance deficiency. This performance deficiency is more than minor and is therefore a finding because it was associated with the human performance attribute of the Initiating Events cornerstone. This performance deficiency adversely affected the cornerstone objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. Specifically, the resulting increased likelihood of human error could adversely affect the stations defense-in-depth. Using Inspection Manual Chapter (IMC) 0609, Attachment 04, Initial Characterization of Findings, and Appendix G, Attachment 04, PWR Refueling Operation: RCS level > 23 feet, the finding is screened as very low safety significance (Green) based on no known effects to the plant safety caused by possible worker fatigue. In addition, because there was no fuel in the reactor core at the time of the work activities, none of the checklist guidelines were impacted. This finding has a human performance cross-cutting aspect associated with resources; in that leaders did not ensure that personnel, equipment, procedures, and other resources were available and adequate to support nuclear safety [H.1]. |
| Site: | Diablo Canyon  |
|---|---|
| Report | IR 05000275/2014002 Section 1R20 |
| Date counted | Mar 31, 2014 (2014Q1) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.2 |
| Inspectors (proximate) | B Parks C Smith J Reynoso P Jayroe P Kaufman T Hipschman W Walker |
| Violation of: | 10 CFR 26.207 |
| CCA | H.1, Resources |
| INPO aspect | LA.1 |
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Finding - Diablo Canyon - IR 05000275/2014002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Diablo Canyon) @ 2014Q1
Self-Identified List (Diablo Canyon)
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