05000247/FIN-2008005-01
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Technical Specification (TS) 3.6.6 requires, in part, a minimum of three trains of containment fan cooler units (FCU) to be operable in mode 1. Contrary to this requirement, the required number of FCUs was not operable in mode 1, assuming a single failure of one emergency diesel generator (EDG) to supply power to the 5A bus during a design basis accident, coincident with a loss of offsite power. Specifically, on March 28, 2008, Entergy identified an incorrect wiring configuration that would have prevented the automatic start of the 23 FCU. This condition, coincident with a single failure of an EDG during a design basis accident, coincident with a loss of offsite power, would have prevented the automatic start of at least three FCUs. This issue was corrected on March 28, 2008 and entered into Entergys corrective action program as IP2-2008-01482. The finding was more than minor because it was associated with the mitigating systems cornerstone and impacted the objective of ensuring the reliability of systems that respond to initiating events to prevent undesirable consequences. The inspectors determined that this finding was of very low safety significance (Green) based on IMC 0609, Attachment 0609.04, Phase 1 Initial Screening and Characterization of Findings, because the finding did not represent an actual loss of safety function of the FCUs for greater than their allowed outage time. |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000247/2008005 Section 4OA7 |
| Date counted | Dec 31, 2008 (2008Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | G Malone J Commiskey M Gray P Cataldo R Fuhrmeister A Koonce A Rosebrook B Haagensen C Hott D Silk |
| INPO aspect | |
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Finding - Indian Point - IR 05000247/2008005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Indian Point) @ 2008Q4
Self-Identified List (Indian Point)
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