05000387/FIN-2010004-07
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | On August 19, 2010, PPL identified that Emergency Procedure, EO-000-031, Station Power Restoration, Revision 17, was inadequate for restoration of emergency 4kV busses from a station blackout (SBO). Procedural steps to energize the busses once offsite power was available would not result in a closed breaker. A y-coil prohibited breaker closure without energizing the synchroscope and taking the breaker switch to close vice the as-written directions to take the switch to the open position, thus matching the in-field condition permitting automatic closure. This issue was determined to be a violation of 10 CFR 50.63, Loss of All AC Power, for a degraded capability to recover from a station blackout. The finding is more than minor because it affected the Mitigating Systems cornerstone objective of system availability to respond to initiating events to prevent undesirable consequences and affected the procedure quality attribute, specifically an EOP. The violation was not greater than green because it did not represent a loss of safety function and was not related to a design or qualification deficiency or external event. The issue was entered in PPL\'s CAP as CR 1294270. |
| Site: | Susquehanna  |
|---|---|
| Report | IR 05000387/2010004 Section 4OA7 |
| Date counted | Sep 30, 2010 (2010Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | A Rosebrook D Molteni J Furia J Greives P Finney P Krohn R Mckinley |
| INPO aspect | |
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Finding - Susquehanna - IR 05000387/2010004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Susquehanna) @ 2010Q3
Self-Identified List (Susquehanna)
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