05000219/FIN-2009003-06
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Finding | |
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| Title | Loss of Secondary Containment Integrity During Maintenance on Reactor Building Roof |
| Description | A self-revealing NCV of 10 CFR 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings occurred when Exelon personnel did not properly implement a procedure for the control of secondary containment integrity during maintenance activities when both reactor building roof access airlock hatches were maintained opened at the same time on April 1. Exelons corrective actions included installing a label on the roof hatch doors which specify control requirements, replacing the door lock with one controlled by operations personnel, and reinforcing with maintenance personnel the requirements for pre-job briefings. This issue has been entered into Exelons corrective action program. The finding was more than minor in accordance with IMC 0612, Appendix B (Section1-3), Issue Screening, because it was associated with the configuration control attribute of the barrier integrity (maintain radiological barrier functionality of SBGTS trains - BWR only) cornerstone and affected the cornerstone objective to provide reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. In accordance with IMC 0609.04 (Table 4a), Phase 1 Initial Screening and Characterization of Findings, the finding was determined to be of very low safety significance (Green). The performance deficiency had a cross-cutting aspect in the area of human performance, work practices (IMC 0305, Aspect H.4(a)), because human error prevention techniques were not used commensurate with the risk of the assigned task, such that work activities are performed safely. Specifically, Exelon personnel did not effectively utilize pre-job briefs and self and peer checks to ensure that secondary containment integrity would be maintained during maintenance activities on the reactor building roof |
| Site: | Oyster Creek |
|---|---|
| Report | IR 05000219/2009003 Section 4OA2 |
| Date counted | Jun 30, 2009 (2009Q2) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | S Pindale J Kulp M Ferdas T Fish R Nimitz S Chaudhary R Bellamy H Gray |
| CCA | H.12, Avoid Complacency |
| INPO aspect | QA.4 |
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Finding - Oyster Creek - IR 05000219/2009003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Oyster Creek) @ 2009Q2
Self-Identified List (Oyster Creek)
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