05000341/FIN-2017002-01
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Finding | |
|---|---|
| Title | Inadequate Work Instructions for Maintenance on EDG 14 |
| Description | Green . A finding of very low safety significance with an associated Non- Cited Violation of 10 CFR 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, was self -revealed when plant operators were not able to shut down emergency diesel generator (EDG) 14 using the manual emergency stop button during surveillance testing. Consequently, operators shut down the engine and removed it from service. The licensee failed to have work instructions for maintenance on the safety -related EDG appropriate to ensure the emergency overspeed switch (EOS) oil seal was properly installed to prevent oil intrusion into the switch housing. The licensee entered this violation into its corrective action program for evaluation and identification of appropriate corrective actions. The licensee replaced the EOS and revised the maintenance procedure and work order guidance for proper oil seal installation on the EOS. The finding was of more than minor safety significance because it was associated with the Equipment Performance at tribute of the Mitigating Systems Cornerstone and adversely affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the EO S failure during surveillance testing due to oil intrusion resulted in unplanned inoperability and unavailability of an onsite emergency power source. The finding was determined to be of very low safety significance because it did not represent an actual loss of function of a single train for greater than its Technical Specification (TS) allowed outage time nor did it represent a loss of function of a non- TS train designated as high safety significant in accordance with the licensees Maintenance Rule Program . The inspectors concluded this finding affected the cross - cutting area of human performance and the cross -cutting aspect of documentation. Plant activities are governed by comprehensive, high- quality, programs, processes and procedures. In this case , the licensee determined its maintenance procedure and work order guidance were not adequate to ensure the EOS oil seal and upper air start distributor gasket were properly installed to prevent oil leakage from the air start distributor from getting into the EOS housing. (IMC 0310, H.7) |
| Site: | Fermi  |
|---|---|
| Report | IR 05000341/2017002 Section 1R12 |
| Date counted | Jun 30, 2017 (2017Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.12 |
| Inspectors (proximate) | B Kemker P Smagacz B Bergeon J Bozga T Briley G Edwards V Myers B Dickson |
| Violation of: | 10 CFR 50 Appendix B Criterion V |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
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Finding - Fermi - IR 05000341/2017002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fermi) @ 2017Q2
Self-Identified List (Fermi)
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